$8\mathrm{.}11$ Nonconstant Dividends: Spears, Inc., has an odd dividend policy. The company has just paid a dividend of $$7$ per share and has announced that it will increase the dividend by $$4$ per share for each of the next four years, and then never pay another dividend. If you require an $11$ percent return on the company's stock, how much will you pay for a share today?