Shaylea, age 22, just started working full-time and plans to deposit $5,900 annually into an IRA earning 10 percent interest compounded annually. How much would she have in 20 years, 30 years, and 40 years?

If she changed her investment period and instead invested $491.67 monthly, and the investment also changed to monthly compounding, how much would she have after the same three time periods? Comment on the differences over time.