In order to provide numnerical answers, the initial loan principal A and the interest rate r must be given. You have not provided them.
They already tell you how to calculate w once r is known.
Your monthly payment formula does not look like you copied it correctly
Suppose A is the amount borrowed, r is the interest rate (in decimal form), and m is the total number of monthly payments.
Let w = (r)/(12)
Then the formula to determine the monthly payment amount for a loan is given by
(Aw)/1-(1)/ (1+w)^m
(a) What is the numerical value of w?
(b) What is the monthly payment? (Show values substituted in the formula, and calculate the numerical amount.) Note: Since the loan is an amount in dollars and cents, it’s important to maintain a high degree of precision in intermediate calculations, and round to the nearest cent at the end.
(c) If Alice makes all 60 payments, how much will have been paid altogether?
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