Homemade Flying Machines has a capital structure of 37% debt, 10% preferred stock and 53% common stock. The pre-tax cost of debt is 5.5%, the cost of . preferred stock is 8% and the cost of equity is 12%. The firm's marginal tax rate is 21%. Part 1 Attempt 3/3 for 8 pts. What is the company's weighted average cost of capital