According to the rule of 72, how many times your money will be doubled over a 40-

year period if it earns a rate of return of 9% per year? Show your work.

Using the rule of 72, estimate the value of an initial investment of $60K at the end of a

40-year period if it earns a rate of return of 9% per year? Show your work.

According to the 4% rule, what the size of your investment portfolio needs to be in

order for you to withdraw an initial annual amount of $300K? Show your work.

Referring to part c, what will be your 4th annual withdrawal amount if the inflation rate during the 3 years since your initial withdrawal averaged 2.5% per year? Show your

work.

Please answer in excel with the formulas