Mullineaux Corporation's common stock has a market value of $6,000,000, its preferred stock has a market value of $500,000, and its debt has a market value of $3,500,000. Its cost of equity is 12.5 percent, the cost of preferred stock is 5.5 percent, and the cost of debt is 7.2 percent. The relevant tax rate is 35 percent. What is the company's WACC