6. I am an investor who has several opportunities to invest at a 15% return. a. If I desire to have my investment compound at an annual rate of return of 15%, and also receive no less than a 5X multiple on my investment, how many years do I need to have my money put to work? b. How many years do I have to have my money put to work if I decide to receive, instead, a 15% annual cash dividend payment on my investment, and then keep all of my dividends under my mattress