"Based on current market values, the FIN340 Company has calculated its capital structure weightings to be comprised of 43% common stock, 7% preferred stock, and 50% debt; The pre-tax cost for each is common stock 14.00%, preferred stock 6.30%, and debt 5.80% and the company has a tax rate of 21%; What is the FIN340 Company's weighted average cost of capital (WACC)?"