Sandhill Tire Co.just paid an annual dividend of $1.20 on its common shares. If Sandhill is expected to increase its annual dividend by 2.10 percent per year into the foreseeable future and the current price of Sandhill's common shares is $14.59, what is the cost of common stock for Sandhill? (Round intermediate calculations to 4 decimal places, e.g. 0.1555 and final answer to 2 decimal places, eg. 15.25%.) Cost of common stock de