probability

A. Suppose a 40-year-old person deposits $ 8,000 per year in an Individual Retirement Account until age 65. Find the total in the account with the following assumption of an interest rate. (Assume quarterly compounding, with payments of $ 2,000 made at the end of each quarter period.) Find the total amount of interest earned. 7% B. Michelle wants to have a $ 19,000 down payment when she buys a new car in 6 years. How much money must she deposit at the end of each quarter in an account paying 2.8% compounded quarterly so that she will have the down payment she desires? C. Find the present value of an ordinary annuity which has payments of $1900 per year for 13 years at 8% compounded annually. A D. Find the present value of an ordinary annuity with payments of $13,559 semiannually for 3 years at 5.2% compounded semiannually