You have $20,000 you want to invest for the next 40 years you offered an investment plan that will pay you 6% per year for the next 20 years and 10% per year for the last 20 years. How much will you have at the end of 40 years? Does it matter if the investment plan pays you 10% per year for the first 20 years and 6% per year for the next 20 years? Why or why not?