1. a. Joe wants to start an Individual Retirement Account (IRA) that will have $920,000 in it when he retires in 15 years. How much should he invest semiannually in his IRA to do this if the annual interest rate is 15% compounded semi-annually? b. Joe needs $9,000 in 10 years. What amount can she deposit at the end of each quarter at annual interest rate of 6% compounded quarterly so she will have her $9,000? c. Joe borrowed $2,200 to purchase a new Laptop at an annual interest rate of 12%. She is to pay it back in equal quarterly payments over a 2-year period. Find the payment necessary to amortize the loan (Round to the nearest dollar). d. Joe borrowed $12,700 to purchase a new car at an annual interest rate of 12%. He decides to pay back the loan in equal monthly payments within a 4-year period. How much total interest will be paid over the period of the loan? (Round to the nearest dollar.)