Problem:
Suppose that B2B Inc. has a capital structure of 37 percent equity, 17 percent preferred stock, and 46 percent debt. If the before-tax component costs of equity, preferred stock, and debt are 14.5 percent, 11 percent, and 9.5 percent, respectively, what is B2B's WACC if the firm faces an average tax rate of 30 percent? Please justify your answer and also provide all calculations and formulas.