National Home Rentals has a beta of 1.24, a stock price of $22, and recently paid an annual dividend of $0.94 a share. The dividend growth rate is 4.5 percent. The risk-free rate is 3.1 percent and the expected market return is 8.6 percent. What is the firm's cost of equity? 9.44 percent 7.30 percent 9.13 percent 8.13 percent