The following table gives Foust Company's earnings per share for the last 10 years. The common stock, 6.5 million shares outstanding, is now ( 1/1/22 ) selling for $54.0 on the historical earnings growth rate. (Note that 9 years of growth are reflected in the 10 years of data.) The current interest rate on new debt is 8%; Foust's marginal tax rate is 25%; and its target capital structure is 50% debt and 50% equity. a. Calculate Foust's after-tax cost of debt. Round your answer to two decimal places. % Calculate Foust's cost of common equity. Calculate the cost of equity as r5=D1/P0+g. Do not round intermediate calculations. Round your answer to two decimal places. % b. Find Foust's WACC. Do not round intermediate calculations. Round your answer to two decimal places. %