Rizzi company is growing quickly. Dividends are expected to grow 20 percent per year over the next three years, 15% for the following two years, and 6% per year thereafter. the required rate of return on the stock is 12%, and the company recently paid a dividend of $2.50. a)calculate the present value of each dividend for years 1-5. b) calculate the stock price as of the end of year 5. c) calculate the current stock price. d) calculate the dividend yield