Anderson Companies has issued debt, preferred stock and common stock. The market value of these securities are $4mil, $2mil, and $6mil, respectively. The debt is a ten-year zero-coupon bond with face value of $5mil, maturing in ten years. Preferred stock will pay dividend of $1 per year forever. It just paid its dividend and the next dividend is in one year. The preferred stock is currently priced at $10 per share. The common stock has a beta of 1.2. The market premium is 7% and risk-free rate is 1%. Assuming no tax, what is the firm's WACC?