Assume you can invest $50 monthly in a Mutual Fund that has delivered a 7.20% annual return over the last 15-years.

$50 monthly investment

7.20% annual return

30 years to retirement

20% income tax bracket at retirement

What is the total amount you would invest in 30 years?

How much would you have in your account if the fund continued to perform at the same annual rate of return until you retired in 30 years? If you were in a 20% tax bracket at retirement, how much would be available to spend if you sold your Mutual Fund at retirement?

How much would you have to spend at retirement if your Mutual Fund was in a ROTH IRA instead?

I need to know which formulas you used for each answer