The future earnings, dividends, and comman stock price of Callahan Technologies Inc. are expected to grow 3% per year. Caliahan's commen stock turrently seils for $28.75 per share; its last dividend was $2.00; and it will pay a $2.06 dividend at the end of the current year: 2. Using the DCF approach, what is its cost of common equity? Do not round intermediate calculations. Round your answer to two decimal places. b. If the firm's beto is 1.5, the risk-free rate is 4%, and the average return on the market is 12%, what will be the firm's cost of common aquity using the CAPM approach? Round your answer to two decimal places. c. If the firm's bonds earn a return of 10%, based on the bond-yleld-plus-risk-premium approach, what will be ra? Use the fudgmental risk premium of 4% 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? Do not round intermediate calculations. Round your answer to two decimal places