Find the circumference:
Circumference = 2 x pi x radius
Circumference = 2 x 3.14 x 9 = 56.52 inches
the arc length is 45 degrees/360 degrees of the circumference.
Marc length = 56.52 x 45/360 = 7.065 inches
Rounded to the nearest tenth = 7.1 inches
Let the speed of the current equal c
and the speed of the boat in still water equal b.
b + c = 1.5 (b - c)
b + c = 1.5b - 1.5c
0.5b = 2.5c
b = 5c
The speed of the current is 1.5 mph so
b = 5 * 1.5 = 7.5 mph
The APR on the loan will be $13. The APR is found by the standard formula. It is calculated annually.
<h3>What is APR? </h3>
APR is an annualized cost indication for a loan that includes all costs.
Suppose there is an initial amount as P. The interest, or say charge on it, is applied annually as 'C' amount.
The given data in the problem is;
Loan payment = $400
Fees = $52
APR=?
The value of the APR is found as;

Hence, the APR on the loan will be $13.
To learn more about the APR, refer to the link;
brainly.com/question/1361627
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Answer: no
Step-by-step explanation: