4. You want to buy a new sports coupe for $76,500, and the finance office at the dealership has quoted you an APR of 5.8 percent for a 72-month loan to buy the car a. What will your monthly payments be? b. What is the effective annual rate on this loan? 5. One of your customers is delinquent on his accounts payable balance. You've mutually agreed to a repayment schedule of $500 per month. You will charge 1.35 percent per month interest on the overdue balance. If the current balance is $12,500, how long will it take for the account to be paid off