3. The average American has $91 lying about. Stick $91 in an ordinary annuity account each year for 12 years at 4% interest compounded annually and watch it grow. What is the cash value of this annuity at the end of year 12? 4, Jennifer invests $2,400 at the end of each year for 11 years in an ordinary annuity at 10% interest compounded annually. What is the final value of Jennifer's investment at the end of year 11? 5. At the beginning of each period for 11 years, Bobby Nelson invests $470 semiannually at 4%, com year 11? pounded semiannually. What is the cash value of this annuity due at the end of