The following table gives Foust Company's earnings per share for the last 10 years. The common stock, 8.5 million shares outstanding, is now (1/1/22) selling for $70.00 per share. The expected dividend at the end of the current year (12/31/22) is 55% of the 2021 EPS. Because investors expect past trends to continue, g may be based 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 10\%; Foust's marginal tax rate is 25%; and its target capital structure is 40% debt and 60% 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 rs=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. %