17. (Amount of an annuity due) Redo Problem 15 assuming that you make your payments at the beginning of each year. 19. (Present value of an ordinary annuity) you wish to create a bank account from which you can withdraw $10,000 per year at the end of each of the next 10 years. How much must you deposit today to provide these benefits if you can earn at a rate of 5%, 12%, 16%, and 20%? 21. (Present value of an annuity due) Redo Problem 19 assuming that you make your withdrawals at the beginning of each year. 31. (Growing cash stream) you have the opportunity to buy the stock of a company which is expected to pay a $3.50 dividend in one year and grow thereafter at A rate of 4%. If you require a 16% rate of return on 33. (Perpetuity) a certain preferred stock pays a $14.00 annual dividend. The next dividend is expected in one year. How much is the stock worth to you if you require a rate of return of: a. 10%? b. 14%? c. 17%? d. 20%? 6. (Basic time