washer-dryer combination can be purchased from a department store by making monthly credit card payments of $53.24 for three-and-a-half years. The first payment is due on the date of sale and interest is 21% compounded monthly. (a) What is the purchase price? (b) How much will be paid in installments? (c) How much is the cost of financing? (d) If an additional $9.50 per month is added to cover a service contract, what is the value of the entire contract on the date of sale?