Suppose that B2B, Inc., has a capital structure of 37 percent equity, 18 percent preferred stock, and 45 percent debt. Assume the before-tax component costs of equity, preferred stock, and debt are 13.5 percent, 9.0 percent, and 8.5 percent, respectively. What is B2Bs WACC if the firm faces an average tax rate of 30 percent? (Round your answer to 2 decimal places.)