Answer:
86 payments approximately
Explanation:
First;
Find the monthly average interest rate,
=7%/12
=0.0058333333
Second;
Add the monthly average interest rate to the monthly payment
= $175 + 0.0058333333
= $175.00583333 (average total monthly balance)
Third;
Divide final account balance by the average total monthly balance
= 15,000 / 175.00583333
=85.71 payments.