Nicki Johnson, a sophomore mechanical engineering student, receives a call from an insurance agent, who believes that Nicki is an older woman ready to retire from teaching. He talks to her about several annuities that she could buy that would guarantee her an annual fixed income. The annuities are as follows: If Nicki could earn 12 percent on her money by placing it in a savings account, should she place it instead in any of the annuities? Which ones, if any? Why? If Nicki could earn 12 percent on her money, what is the present value of annuity A with $7, 500 payment per year and 20 years duration? $ 56 (Round to the nearest cent.)