1. Sarah Wiggum would like to make a single investment and have $1.7 million at the time of her retirement in 25 years. She has found a mutual fund that will earn 6 percent annually. How much will Sarah have to invest today? If Sarah earned an annual return of 17 percent, how soon could she then retire?

2. How many years will it take for $520 to grow to $1, 003.74 if it's invested at 8 percent compounded annually?