Jocelyn is considering taking out one of the two following loans. loan h is a three-year loan with a principal of $5,650 and an interest rate of 12.24%, compounded monthly. loan i is a four-year loan with a principal of $6,830 and an interest rate of 10.97%, compounded monthly. which loan will have the smaller monthly payment, and how much smaller will it be? round all dollar values to the nearest cent. a. loan h's monthly payment will be $42.46 smaller than loan i's. b. loan h's monthly payment will be $140.79 smaller than loan i's. c. loan i's monthly payment will be $11.88 smaller than loan h's. d. loan i's monthly payment will be $26.98 smaller than loan h's.

The coupon rate is about 8.716%

To find the coupon rate of a bond, we need to use the formula for the present value of a bond's cash flows.

The present value formula for a bond is:

PV = C * (1 - (1 + r)^(-n)) / r + F * (1 + r)^(-n)

Where:

PV = Present value of the bond (given as $1,011.38)

C = Coupon payment

r = Yield to maturity (given as 9.19% or 0.0919)

n = Number of periods (6 years, so n = 12)

We know that the face value (F) of the bond is $1,000.

Using the given information, we can rewrite the formula as:

$1,011.38 = C * (1 - (1 + 0.0919)^(-12)) / 0.0919 + $1,000 * (1 + 0.0919)^(-12)

Now we can solve for C, the coupon payment:

$1,011.38 = C * (1 - 1.0919^(-12)) / 0.0919 + $1,000 * 1.0919^(-12)

To find the coupon rate, we need to divide the coupon payment (C) by the face value ($1,000):

Coupon Rate = (C / $1,000) * 100%

Now we can solve for C and calculate the coupon rate:

$1,011.38 = C * (1 - 1.0919^(-12)) / 0.0919 + $1,000 * 1.0919^(-12)

$1,011.38 - $1,000 * 1.0919^(-12) = C * (1 - 1.0919^(-12)) / 0.0919

(C * (1 - 1.0919^(-12)) / 0.0919) = $1,011.38 - $1,000 * 1.0919^(-12)

C * (1 - 1.0919^(-12)) = ($1,011.38 - $1,000 * 1.0919^(-12)) * 0.0919

C = (($1,011.38 - $1,000 * 1.0919^(-12)) * 0.0919) / (1 - 1.0919^(-12))

Once we calculate C, we can find the coupon rate:

Coupon Rate = (C / $1,000) * 100%

Therefore, the coupon rate is 2 × $43.58 / $1000 = 8.716% (rounded to three decimal places).

To learn more about maturity, refer below:

https://brainly.com/question/31514491

#SPJ11

To find the unique function f(x) satisfying the given conditions, we will use the method of undetermined coefficients.

Assume that f(x) is a polynomial of degree n. Then, f"(x) is a polynomial of degree n-2. Therefore, x^2 f(x) is a polynomial of degree n+2.

Let's first find the second derivative of f(x):

f''(x) = (d^2/dx^2) f(x)

Since we assumed that f(x) is a polynomial of degree n, we can write:

f''(x) = n(n-1) a_n x^(n-2)

where a_n is the leading coefficient of f(x).

Now, let's substitute the given values of f(1) and f(2):

f(1) = a_n

f(2) = a_n 2^n

Therefore, we have two equations:

n(n-1) a_n = x^2 f(x)

a_n = 4

a_n 2^n = 1

Solving for n and a_n, we get:

n = 3/2

a_n = 4/3^(3/2)

Thus, the unique function f(x) that satisfies the given conditions is:

f(x) = (4/3^(3/2)) x^(3/2) - (4/3^(3/2)) x^2 + 1/2
It seems that your question is incomplete or contains some errors. However, based on the information provided, I understand that you are looking for a function f(x) that satisfies given conditions involving its second derivative and specific values of f(1) and f(2).

To assist you properly, please provide the complete and correct version of the question with all the necessary conditions.

To learn more about polynomial visit;

brainly.com/question/11536910

#SPJ11

Answer: 1,004.8 or 320[tex]\pi[/tex]

Step-by-step explanation:

[tex]\frac{1}{3} \pi 8^{2} 15=1,004.8[/tex]

Answer:

48.91

Step-by-step explanation:

r=cos^-1(.92)

r=23.07

cos(23.07)=45/y

y=45/cos(23.07)

48.91

The slope of the equation is 0.6, which means that for every second, the computer downloads 0.6 megabytes of data, option C is correct.

The linear equation that represents the number of megabytes downloaded per second can be determined by dividing the total amount of data downloaded (3 MB) by the time taken to download it (5 seconds). This gives us the rate of download in megabytes per second (MB/s). Therefore, the equation is:

y = 0.6x

where y represents the number of megabytes downloaded per second and x represents the time taken to download the data. The negative slope values in the other options do not make sense, as the number of megabytes downloaded per second should be a positive value, option C is correct.

To learn more about equation follow the link:

https://brainly.com/question/11897796

#SPJ1

You can fill 4 five liter gas tanks from a full 20 liter gas can.

To determine how many 5-liter gas tanks can be filled from a full 20-liter gas can, you would divide the total capacity of the gas can by the capacity of the individual gas tanks.

Step 1: Identify the total capacity of the gas can (20 liters) and the capacity of each gas tank (5 liters).
Step 2: Divide the total capacity by the individual tank capacity (20 liters / 5 liters).

Your answer: You can fill 4 (20 liters / 5 liters = 4) 5-liter gas tanks from a full 20-liter gas can.

Learn  more about Unitary Method: https://brainly.com/question/28276953

#SPJ11

The probability that at least one of the six patients has an injection site reaction is 0.536or 53.6%.

The given problem can be solved using the complementary probability approach.

According to the question:

The probability that patient experience an injection-site reaction is = 0.12

Hence the probability that a patient does not have an injection-site reaction is = 1-0.12 =0.88

Number of persons who received injections with this type of needle =6

Assuming that the reactions are independent, the probability that none of the six patients has an injection site reaction is:=[tex](0.88)^{6}[/tex]= 0.464

Hence the probability that at least one of the six patients has an injection-site reaction is:

1-0.464 =0.536

Therefore, the probability that at least one of the six patients has an injection site reaction is 0.536 or 53.6%.

To know about questions based on probability:

https://brainly.com/question/28976211

#SPJ4

Step-by-step explanation:

To simplify the expression, we can factor out the common factor -6x²y² from each term in the numerator:

-6x²y²(3y² - 6xy + 4x²) / 6xy

We can cancel out the common factor of 6 in both the numerator and denominator:

- x²y(3y² - 6xy + 4x²) / xy

Now we can simplify the expression further by canceling out the common factor of xy in the numerator:

- x(3y² - 6xy + 4x²)

Thus, the quotient of the numerator and denominator is:

- x(3y² - 6xy + 4x²) / 6xy.

Answer:

Step-by-step explanation:

We can set up the proportion (20/40) = (x/220), where x is the number of students in the 7th grade class who prefer the zoo. Cross-multiplying this proportion gives us 40x = 20*220, which simplifies to x = 110.

Therefore, we can expect that 110 students in the 7th grade class prefer the zoo.

To explain this solution in more detail, we can use the concept of proportionality. In statistics, when we take a random sample from a larger population, we can use the proportion of the sample to estimate the proportion of the population.

If we assume that the sample is representative of the population, then the proportion of students who prefer the zoo in the sample should be similar to the proportion of students who prefer the zoo in the 7th grade class.

By setting up a proportion between the sample and the population, we can estimate the number of students in the 7th grade class who prefer the zoo. We know that 20 out of the 40 students in the sample from the 7th grade class prefer the zoo,

so we can use this proportion to estimate the number of students in the 7th grade class who prefer the zoo. Cross-multiplying the proportion gives us the equation 40x = 20*220, which we can solve for x to get x = 110.

It is important to note that this is just an estimate and that there is some degree of uncertainty involved in the estimation process. However, by using statistical methods such as proportionality, we can obtain a reasonable estimate that can help us make informed decisions.

To know more about proportion refer here:

https://brainly.com/question/31548894#

#SPJ11

The solid obtained by rotating the region bounded by y = r^2 and y = 2 about the axis y = -2 would be a three-dimensional shape with a hole in the middle. The axis of rotation is the line y = -2, which means that the solid will be formed by rotating the given region around this axis. The resulting shape will have a cylindrical section and two hemispherical sections on either end. The cylinder will have a height of 4 and a radius of 2, while the hemispheres will have radii of 2 and 4, respectively.

b) The solid obtained by rotating the region bounded by y = Vx, y = 1, and x = 4 about the axis r = -1 would be a three-dimensional shape with a conical section and a cylindrical section. The axis of rotation is the line r = -1, which means that the solid will be formed by rotating the given region around this axis. The resulting shape will have a cone-shaped section with a height of 4 and a base radius of 4, as well as a cylindrical section with a height of 1 and a radius of 4.
a) The solid obtained by rotating the region bounded by y = x^2 and y = 2 about the axis y = -2 is a parabolic cylinder. This is formed when the parabolic region between the two given functions is rotated around the specified axis, creating a three-dimensional shape with parabolic cross-sections.

b) The solid obtained by rotating the region bounded by y = √x, y = 1, x = 4, about the axis x = -1 is a torus-like shape. This is formed when the region enclosed by the square root function, the horizontal line at y = 1, and the vertical line at x = 4 is rotated around the specified axis, creating a donut-like shape with varying thickness.

To know more about Shape click here .

brainly.com/question/28756579

#SPJ11

The required height of the trapezoid is 4 ft.

In geometry, a quadrilateral with at least one pair of parallel sides is referred to as a trapezoid in American, Canadian, and British English. In Euclidean geometry, a trapezoid is inevitably a convex quadrilateral. The trapezoid's parallel sides are referred to as its bases.

Given data;

a= 3 ft, b = 7 ft, height = h, Area = 20 sq, ft

So,

Area = (a + b)h/2

20 = (3 + 7)h/2

20 = 10h/2

2 = h/2

h = 4 ft

Thus, required height of the trapezoid is 4 ft.

To know more about Trapezoid visit;

brainly.com/question/29193735

#SPJ1

The volume of the sand pile to the nearest cubic meter would be 10,121 cubic meters.

To find the volume of the sand pile, we need to know its base dimensions and height. Since we have the angle and the length of the slant side (RT) of the pile, we can use trigonometry to find the height and base dimensions.

We can use the sine function to find the height (TO):

sin(R) = opposite / hypotenuse

sin(40) = TO / 20

We can also use the cosine function to find the radius (RO):

cos(R) = adjacent / hypotenuse

cos(40) = RO / 20

Calculate the values:

TO = 20 x sin(40) = 12.85 meters

RO = 20 x cos(40) = 15.32 meters

Finally, we can find the volume V of the cone-shaped sand pile using the formula:

V = (1/3) x π x r² x h

V = (1/3) x π x (15.32)² x 12.85

V = 10,121.39 cubic meters

Find out more on volume at https://brainly.com/question/11577019

#SPJ1

Therefore, it is possible for Diego to draw D 19 times, O 10 times, and G 1 time when picking 30 letters from the bag with replacement, although it is highly unlikely.

Probability is a measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, with 0 indicating that the event is impossible, and 1 indicating that the event is certain to occur.

Here,

Yes, it is possible for Diego to draw D 19 times, O 10 times, and G 1 time when picking 30 letters from the bag with replacement.

The probability of drawing the letter D on one pick is 1/3, since there is 1 D out of 3 letters in the bag. Similarly, the probability of drawing the letter O on one pick is also 1/3, and the probability of drawing the letter G on one pick is 1/3.

Since Diego replaces each letter he picks, the probability of drawing D 19 times in a row is (1/3)¹⁹, the probability of drawing O 10 times in a row is (1/3)¹⁰, and the probability of drawing G 1 time is 1/3.

The probability of all these events happening in this order is the product of their individual probabilities, which is:

(1/3)¹⁹ * (1/3)¹⁰ * 1/3 = (1/3)³⁰

This probability is very small, but it is still greater than zero.

To know more about probability,

https://brainly.com/question/30034780

#SPJ1

The position of particle in a straight line with v = t(t^2 + 1)³ + 3t is (1/8)t⁸ + (3/6)t⁶ + (3/4)t⁴ + 2t² C.

To find an expression for the position s after a time t, we need to integrate the velocity function v with respect to time t.

Using the power rule of integration and the constant of integration C, we have:

s = ∫v dt = ∫[t(t² + 1)³ + 3t] dt

after expanding t(t² + 1)³ using binomial theorem we have-

(t^2 + 1)³ = t⁶ + 3t⁴ + 3t² + 1

Substituting this into the integral, we get:

s = ∫[t(t⁶ + 3t⁴ + 3t^2 + 1) + 3t] dt

s = ∫[t^7 + 3t⁵ + 3t³ + t + 3t] dt

s = ∫t^7 dt + 3∫t⁵ dt + 3∫t³ dt + ∫4t dt

s = (1/8)t⁸ + (3/6)t⁶ + (3/4)t⁴ + 2t² + C

Therefore, the expression for the position s after a time t is:

S = (1/8)t⁸ + (3/6)t⁶ + (3/4)t⁴ + 2t² + C, where C is the constant of integration.

Learn more about double integral : https://brainly.com/question/19053586

#SPJ11

Answer:

Step-by-step explanation:

6.48x1.0e5=x

x/0.35

The equation of the sinusoidal function is y = 5sin(x).

To solve this, we need to find the equation of the sinusoidal function that has a maximum point at (0,5) and a minimum point at (2π,-5).

First, we know that the function is a sine function because it has a maximum at (0,5) and a minimum at (2π,-5).

Second, we can find the amplitude of the function by taking half the difference between the maximum and minimum values. In this case, the amplitude is (5-(-5))/2 = 5.

Third, we can find the vertical shift of the function by taking the average of the maximum and minimum values. In this case, the vertical shift is (5+(-5))/2 = 0.

Finally, we can find the period of the function by using the formula T=2π/b, where b is the coefficient of x in the equation of the function. In this case, we know that the function completes one cycle from x=0 to x=2π, so the period is 2π.

Putting it all together, the equation of the function is y = 5sin(x)

Learn more about sinusoidal function

brainly.com/question/12060967

#SPJ11

The formula that models the ratio y is:

y = 6 / (6 + x)

Let y be the ratio of the number of gallons of acid in the container compared to the total volume of liquid in the container, and let x be the number of gallons of water added to the container.

Initially, the container has 6 gallons of acid and 0 gallons of water, for a total volume of 6 gallons. When x gallons of water is added, the total volume of liquid becomes 6 + x gallons, and the amount of acid remains at 6 gallons.

Therefore, the formula that models the ratio y is:

y = 6 / (6 + x)

This formula gives the ratio of the number of gallons of acid in the container compared to the total volume of liquid in the container when x gallons of water is added.

learn more about "Ratio":- https://brainly.com/question/12024093

#SPJ11

The expression that represents the area of the rectangular patio in factored form is: area = [(t + 4)(t + 21) / 2(t + 7)(t + 2)]

An expression is a grouping of numbers, variables, and mathematical operations like addition, subtraction, multiplication, and division in mathematics.

Exponents, functions, and other mathematical symbols may also be included.

In mathematical equations and formulas, expressions are used to represent numbers, calculations, and relationships.

The length of the rectangular patio is given by the expression:

length = (t^2 + 19t + 84) / (4t - 4)

The width of the rectangular patio is given by the expression:

width = (2t - 2) / (t² + 9t + 14)

The area of the rectangular patio is given by the product of its length and width:

area = length x width

By substituting, we get:

area = [(t² + 19t + 84) / (4t - 4)] x [(2t - 2) / (t² + 9t + 14)]

We can factor the numerator and denominator of both fractions to simplify the expression:

area = [(t + 4)(t + 21) / 4(t - 1)] x [2(t - 1) / (t + 7)(t + 2)]

We can then simplify the expression by canceling out the common factors of (t - 1) in the numerator and denominator:

area = [(t + 4)(t + 21) / 4] x [2 / (t + 7)(t + 2)]

To know more about factored form visit:

https://brainly.com/question/25094938

#SPJ1

To find f'(4), we need to take the derivative of f(x) with respect to x and then evaluate it at x=4. Using the chain rule, we get:
f'(x) = -16x/(ln(3x^2))^2

So, f'(4) = -16(4)/(ln(3(4)^2))^2 = -64/(ln(48))^2

Rounding to 3 decimal places, we get f'(4) = -0.019.
To find f'(4) for f(x) = 8/ln(3x^2), we first need to differentiate f(x) with respect to x. We will use the quotient rule and the chain rule for this purpose.

The quotient rule states: (u/v)' = (u'v - uv')/v^2, where u = 8 and v = ln(3x^2).

Now, differentiate u and v with respect to x:
u' = 0 (since 8 is a constant)
v' = d(ln(3x^2))/dx = (1/(3x^2)) * d(3x^2)/dx (using chain rule)

Now, differentiate 3x^2 with respect to x:
d(3x^2)/dx = 6x

So, v' = (1/(3x^2)) * (6x) = 2/x

Now, apply the quotient rule for f'(x):
f'(x) = (0 - 8 * (2/x))/(ln(3x^2))^2 = -16/(x * (ln(3x^2))^2)

Now, plug in x = 4 to find f'(4):
f'(4) = -16/(4 * (ln(3*(4^2)))^2) = -16/(4 * (ln(48))^2)

Rounded to 3 decimal places, f'(4) ≈ -0.171.

Visit here to learn more about derivative  : https://brainly.com/question/25324584
#SPJ11

If the absolute value of the calculated t-value is greater than or equal to 3.250, reject the null hypothesis.

To determine the decision rule for rejecting the null hypothesis, we need to calculate the test statistic.

First, we need to calculate the standard error of the mean:

standard error = square root of (variance/sample size)
standard error = square root of (0.25/10)
standard error = 0.158

Next, we can calculate the t-statistic:

t = (sample mean - hypothesized mean) / standard error
t = (6.1 - 5.7) / 0.158
t = 2.532

Using a two-tailed test at the 0.01 level of significance and 9 degrees of freedom (10 samples - 1), the critical t-value is ±3.250.

Since our calculated t-value of 2.532 is less than the critical t-value of ±3.250, we fail to reject the null hypothesis.

Therefore, the data does not support the claim that the current ozone level is at an excess level at the 0.01 level of significance.

Decision rule for rejecting the null hypothesis:

If the absolute value of the calculated t-value is greater than or equal to 3.250, reject the null hypothesis. Otherwise, fail to reject the null hypothesis.

To know more about null hypothesis refer here:

https://brainly.com/question/28920252?#

#SPJ11

The original price of the television was $240.

Let's denote the original price of the television by "x".

From the first sentence, the website applies a 4.5% processing fee and charges $6.00 for shipping. Therefore, the cost of the television with these fees is:

x + 0.045x + 6.00 = 1.045x + 6.00

From the second sentence, the customer uses a coupon that takes 15% off of the final price. Therefore, the price after the discount is:

0.85(1.045x + 6.00) = 0.88825x + 5.10

The problem states that the customer paid $218.28 for the order. Therefore, we can set up the following equation:

0.88825x + 5.10 = 218.28

Solving for x, we get:

0.88825x = 213.18

x = 240

Learn more about arithmetic here:

https://brainly.com/question/6561461

#SPJ1

The value of the expression 5 + 5 × 5 ÷ 5 ÷ 5 is equal to 10.

The order of operations in mathematics is to perform the operations in the following order:

Using this rule, we can simplify the expression:

First, we perform the multiplication and division from left to right:

5 x 5 = 25

25 ÷ 5 = 5

Then, we add the remaining terms:

5 + 5 = 10

Learn more about functions here: https://brainly.com/question/25638609

#SPJ1

part a.

the percentage of eggs between 42 and 45mm is 48.48%

part b.

The median width is approximately (42+45)/2 = 43.5mm.

The median length is approximately (56+59)/2 = 57.5mm.

part c.

The width of grade A chicken eggs has a range of about 24mm.

part d.

I think its impossible to determine because we don't have the value for the standard deviation.

The second option should be correct.

A histogram is described as an approximate representation of the distribution of numerical data.

part a.

From the histogram, we see that the frequency for the bin that ranges from 42 to 45mm is 4 and we have  a total of 33 eggwe use this values and calculate the percentage of eggs between 42 and 45mm is 48.48%.

part b.

we have an  estimation  that the median of the width is 48mm and the median of the length is around 60mm.

part c.

Also from the histogram, we notice  that the smallest value is around 36mm and the largest value is around 66mm, hence the width of grade A chicken eggs has a range of about 24mm.

In a histogram, the range is the width that the bars cover along the x-axis and these are approximate values because histograms display bin values rather than raw data values.

Learn more about histogram at:

https://brainly.com/question/2962546

#SPJ1

The closest option to this value is d) 10.75, but none of the options is an exact match.

To find the interquartile range (IQR) of the data, we need to first find the first quartile (Q1) and the third quartile (Q3).

To do this, we can arrange the data in order from smallest to largest:

98, 100, 104, 105, 106, 110, 112, 115, 116, 118, 120, 122, 126, 130, 136, 140

The median of the data is the average of the two middle values, which are 112 and 115. So, the median is (112 + 115) / 2 = 113.5.

To find Q1, we need to find the median of the data values below the median. These are:

98, 100, 104, 105, 106, 110, 112, 115

The median of these values is (106 + 110) / 2 = 108.

To find Q3, we need to find the median of the data values above the median. These are:

116, 118, 120, 122, 126, 130, 136, 140

The median of these values is (122 + 126) / 2 = 124.

Now we can calculate the interquartile range (IQR) as the difference between Q3 and Q1:

IQR = Q3 - Q1 = 124 - 108 = 16.

Therefore, the interquartile range of the data is 16, or in decimals 16.00.

The closest option to this value is d) 10.75, but none of the options is an exact match.

To know more about median refer here:

https://brainly.com/question/300591

#SPJ11

The domain of the function is 0 ≤ b ≤ 6, and the range of the function is 30 ≤ c ≤ 174.

The function that models the total weight of a crate with b boxes inside is given as:

c = 24b + 30

We know that each crate can hold a maximum of 6 boxes. Therefore, the number of boxes inside the crate can only take values from 0 to 6.

Domain:

The number of boxes b can take values from 0 to 6. Therefore, the domain of the function is:

0 ≤ b ≤ 6

Range:

To find the range of the function, we need to consider the maximum and minimum values that c can take when

0 ≤ b ≤ 6.

When b = 0, the crate is empty, and the total weight of the crate is:

c = 24(0) + 30 = 30.

When b = 6, the crate is full with 6 boxes, and the total weight of the crate is:

c = 24(6) + 30 = 174.

Therefore, the range of the function is:

30 ≤ c ≤ 174

We can then say the domain of the function is 0 ≤ b ≤ 6, and the range of the function is 30 ≤ c ≤ 174.

Learn more about domain here:

https://brainly.com/question/26098895

#SPJ1

The rate of increase, we can see that the function is an exponential growth model with a base of 1.04, which means that the population increases by 4% each year.

There seems to be an error in the problem statement. If the function P(x) = 88,200(1.04)^x models the population after the year 2002, then it doesn't make sense to ask for the population in the year 2000, which is two years before 2002.

Assuming that the function is correctly stated and represents the population after 2002, we can find the population after a certain number of years by plugging that number into the function. For example, to find the population after 5 years (in 2007), we would use:

P(5) = 88,200(1.04)^5 = 105,159.43

This means that the population of the city in 2007 would be approximately 105,159 people.

As for the rate of increase, we can see that the function is an exponential growth model with a base of 1.04, which means that the population increases by 4% each year.

To learn more about population visit:

https://brainly.com/question/24786731

#SPJ11

Therefore, the measure of line segment XC is 3.75 cm.

In geometry, two lines or planes are said to be perpendicular if they intersect each other at a right angle (90 degrees). The term "perpendicular" is also commonly used to describe the relationship between a line and a surface, where the line is at a right angle to the surface at the point of intersection. In general, the concept of perpendicularity is fundamental to many mathematical and scientific fields, such as trigonometry, physics, and engineering. It is also a commonly used term in everyday language to describe objects or structures that intersect at right angles, such as the corners of a square or the legs of a chair.

Here,

In the given diagram, let O be the center of the circle and let XC = a.

Since AB is perpendicular to XY at C, we have AC = BC = 8 m (using Pythagoras theorem). Also, since AB is a radius of the circle, we have AB = r, where r is the radius of the circle.

By the power of a point theorem, we have:

AC × XC = BC × XY

Substituting the given values, we get:

8 m × a = 8 m × 30 cm

Simplifying and converting units, we get:

a = 3.75 cm

To know more about perpendicular,

https://brainly.com/question/29290298

#SPJ1

Evan saved $1.75 per book by buying them on sale.

To find out how much Evan saved per book by buying them on sale, you can use the following formula:

Savings per book = (Regular price per book - Sale price per book)

First, you need to find the regular price per book:

Regular price per book = (Total regular price of 7 books) / 7

Regular price per book = 57.75 / 7

Regular price per book = 8.25

Next, you need to find the sale price per book:

Sale price per book = (Total sale price of 7 books) / 7

Sale price per book = 45.50 / 7

Sale price per book = 6.50

Now, you can find the savings per book:

Savings per book = (Regular price per book - Sale price per book)

Savings per book = (8.25 - 6.50)

Savings per book = 1.75

Therefore, Evan saved $1.75 per book by buying them on sale.

Learn more about savings.

brainly.com/question/30004719

#SPJ11