Awasher-dryer combination can be purchased from a department store by making monthly credit card payments of $42.31 for two-and-a-half years. The first payment is due on the date of sale and interest is 16% compounded monthly.

(a) What is the purchaseprice?

(b) How much will be paid ininstallments?

(c) How much is the cost offinancing?

(d) If an additional $9.50 per month is added to cover a servicecontract, what is the value of the entire contract on the date ofsale?