. A firm has a capital structure that consists of 30% common stock and the remainder in LT debt. The company has 18-year bonds outstanding with a coupon rate of 6%. Coupons are paid twice a year. The bonds are selling at $756 now. The risk-free rate is 3%. The market risk premium is 5%. The beta of the common stock is 1.3. The tax rate is 21%. What is the firms WACC? PLEASE SHOW IN EXCEL WITH FORMULA