b. If the firm's beta is 1.50 , the risk-free rate is 8%, and the average return on the market is 14%, what will be the firm's cost of common equity using the CAPM approach? Rourld your answer to two decimal places. % c. If the firm's bonds earn a return of 11%, based on the bond-yield-plusrisk-premium approach, what will be rs ? Use the midpoint of the risk premium range discussed in Section 10-5 in your calculations. Round your answer to two decimal places. % d. If you have equal confidence in the inputs used for the three approaches, what is your estimate of Callahan's cost of common equity? Round your answer to two decimal places. Do not round your intermediate calculations. %