5. (Basic time period) you have $10,000 today. How long will it take for you to double your money if you can earn interest at an annual rate of 5%, 8%, 15%, and 100%? 7. (Basic interest rate) What annual interest rate does it take to make $45,000 grow to be $60,000 in three years, five years, ten years, and twenty years? 11. (Future value of an ordinary annuity) If you save $5,000 at the end of each year for 15 years, how much will you have accumulated if you can earn at an annual Interest rate of: 6%, 10%. 12%, and 15%? 13. (Future value of an annuity due) Redo Problem 11 assuming that you make your deposits at the beginning of each year. 15. (Amount of an ordinary annuity) How much must you pay at the end of each year to repay a $50,000,14% annual interest rate loan if you must make 10 payments, 15 payments, 20 payments, and 30 payments