* Your answer is incorrect. Try again Carla Vista Co. has a capital structure, based on current market values, that consists of 25 percent debt. 15 percent preferred stock, and 60 percent common stock. If the returns required by Inwestors are 9 percent, 10 percent, and 15 percent for the debt, preferred stock, and common stock, respectively, what is Carla Vista's after-tax WACC? Assume that the firm's marginal tax rate is 40 percent. (Round final answer to 2 decimal places, e.g. 15.259.) After tax WACC 11.40