HBM, Inc has the following capital structure: $400,000 share. The debt pays interest of 9.0 percent annually, and the firm is in the 30 percent marginal tax bracket. a. What is the after-tax cost of debt? Round your answer to two decimal places. % b. What is the cost of preferred stock? Round your answer to two decimal places. % c. What is the cost of common stock? Assume that the current $0.60 dividend grows by 7 percent during the year. Round your answer to two decimal places. % d. What is the firm's weighted-average cost of capital? Round your answer to two decimal places. %