3. WACC. Reactive Power Generation has the following capital structure. Its corporate tax rate is 21%. What is its WACC? (LO13-1) Market Value Security Debt Preferred stock Common stock $20 million 10 million 50 million Required Rate of Return 6% 8 12 4. WACC. The common stock of Buildwell Conservation & Construction Inc. (BCCI) has a beta of 9 The Treasury bill rate is 4%, and the market risk premium is estimated at 8%. BCCI's capital struc ture is 30% debt, paying a 5% interest rate, and 70% equity. Buildwell pays tax at 21%. (L013-1)