Bob's is a retail chain of specialty hardware stores. The firm has 20,000 shares of stock outstanding that are currently valued at $67 a share and provide a 13.3 percent rate of return. The firm also has 550 bonds outstanding that have a face value of $1,000, a market price of $1,066, and a 6.5 percent coupon. These bonds mature in 7 years and pay interest semiannually. The tax rate is 32 percent. What is the firm's WACC