First, let's see what we can learn about retirement needs from the TVM calculations we know how to do. You expect to need $75,000 a year in retirement and you expect your retirement to last 35 years. If you can earn 4% on your investments (during retirement), how much will you need to have saved by your retirement date? It is 40 years until you plan to retire, and you believe you can earn 7% on your investments (before retirement). How much do you need to save each year in order to reach your goal from question 1?