a) Suppose you save $10,000 per year for your retirement. Assuming a 7% annual return (compounded yearly), how much money will you have saved after 40 years? b) Calculate the present value of the following cashflow associated with owning a ar. Use a 5% annual discount rate. You will pay $24,000 now. Then in years two through six, you will pay $400 in maintenance each year (in the first year, maintenance is covered by the warranty). Then, in the seventh year, you sell the car for $15,000. c) My credit card has an APR of 16.99% that is applied monthly to my balance. If I carry a balance of $800.00 for one month, how much interest will I have to pay if I pay off my entire balance in the next month? d) I would like to buy a Mazda MX-5 Miata RF which costs $34,525. I will put $7,000 down and pay the remainder in monthly installments over five years. How much is each monthly payment if my APR is 3.12% (compounded monthly)? e) I would like to take out a 30 year mortgage for $350,000 but I am worried about the monthly payments (which carry interest that is compounded monthly). I can afford payments of $1,350 per month. At what APR do I need to borrow in order to meet this goal for my monthly payment