(Related to Checkpoint 6.2) (Present value of an ordinary annuity) Nicki Johnson, a sophomore mechanical engineering student, receives a call from an insurance agent who believes that Nicki is an older woman who is ready to retire from teaching. He talks to her about several annuities that she could buy that would guarantee her a fixed annual income. The annuities are as follows: (Click on the icon in order to copy its contents into a spreaasneet.)