Sarah Wiggum would like to make a single investment and have $1.5

1.5 million at the time of her retirement in 40

40 years. She has found a mutual fund that will earn 4

4 percent annually. How much will Sarah have to investtoday? If Sarah invests that amount and could earn a 13

13 percent annualreturn, how soon could sheretire, assuming she is still going to retire when she has $1.5

1.5 million?