Problem 21 Intro Homemade Flying Machines has a capital structure of 36% debt 10% preferred stock and 54% common stock. The pre-tax cost of debt is 5%, the cost of preferred stock is 8% and the cost of equity is 11%. The firm's marginal tax rate is 21%. Attempt 1/3 for 10 pts Part 1 What is the company's weighted average cost of capital? B+ decimals Submit