Seth will be attending college out of town next year and has taken out a loan to pay for his first car. To repay the loan, his financial institution is charging him $327.94 per month for 1 year with interest at 9%/a compounded monthly. 

a) What is the actual cost of Seth's car when purchased?

b How much interest will Seth be paying for the ability to have this loan arrangement instead of paying in full up front