Please answer and explain.

5. The total book value of WTC's equity is $400 million and book value per share outstanding is $20. The stock of WTC is currently selling for a price of S95 per share and the beta of WTC is 1.15. The bonds of WTC have a face value of $680 million and sell at a price of 95 percent of face value. The yield to maturity on the bonds is 7.5 percent and the firm's tax rate is 35 percent. If the E(Rm)-11% and Rf-3%, calculate the WACC of WTC