Tim works for HydroTech, a manufacturer of high-pressure industrial water pumps. He reports directly to the CFO, and she has asked him to calculate HydroTech's WACC. He has gathered the following information about HydroTech: its market capitalization (its market value of equity) is $100 million, its beta is 1.2, the total book value of its debt is $60 million, it has $30 million cash, and its cost of debt (using the quoted yields on HydroTech's outstanding bond issues) is 5%. In addition, the yield of the 10-year

government bond (the risk-free rate) is 4%, the market risk premium is 6%, and the marginal corporate tax rate is 35%. Calculate HydroTech's WACC. When is it appropriate to use this WACC to evaluate a new project?