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Your firm has a capital structure consisting of 60% debt and 40% common stock. The firm's bonds have seven years until maturity, a $1,000 par value, and pay interest semiannually. The bonds have a 4% coupon rate and are currently trading at $1,099 per bond. The firm is in the 30% tax bracket. The firm's common stock just paid a $1.80 dividend per share and is currently trading at $190. Common stock dividends are expected to grow by 8% indefinitely. What is the firm's weighted average cost of capital