10. You want to purchase a truck. The best interest rate that you can obtain is 2.75 percent. You want to finance your purchase for 72 months and you are willing to make a cash down payment to lower the amount that you finance. You want your monthly payment to be $525. You and the dealer agree on a purchase price of $40,200. a) What is the amount of your loan under the above conditions? b) How much would your down payment would be