QUESTION 1 Calculato the opportunity cost of capital for a firm with the following capital structure: 30% preferred stock, 50% common stock and 20% debt. The firms has a cost of debt of 6.28%, a cost of preferred stock equal to 10.65% and a 14.8% cost of common stock. The firm has a 36% tax rate. You answer should be entered as a %, for example 15.48%