Barry Wood wants to buy a used car that costs $5,000. He has two possible loans in mind. One loan is through the car dealer; it is a three-year add-on interest loan at 6% and requires a down payment of $300. The second is through his credit union; it is a three-year simple interest amortized loan at 8.5% and requires a 10% down payment.

(a) Find the monthly payment for each loan.

(b) Find the total interest paid for each loan.