How to get following answers right using equations and calculator (no excel)

Ans-

15. D 16. B

Do It Yourself Dental Surgery Inc. just paid a dollar20 dividend at the end of the current year (i.e., Do = dollar20). After the dividend is paid, the company's dividends are expected to grow at a 50% annual rate for each of the following two years, and then settle down to a steady state growth rate of 5% annually. If investor's required rate of return is 15% on this stock, what should a share sell for today? dollar472.50 dollar 350.75 dollar 380.34 dollar 417.39 none of the above answers is within dollar10 of the correct answer What is the price on a 20-year. 8% annual coupon bond, assuming that the market rate is 12%. dollar 1.000 dollar 701.22 dollar 750 dollar 890.50 dollar 642.43