You are using the SML (or CAPM) to calculate the cost of equity. A stock's beta value is 1.10, the return on the market is 7.5%, and the risk free rate is 3%. What is the cost of equity? Use the CAPM formula

A firm has an optimal target capital structure of 2/3 debt and 1/3 common stock. The firm corporate tax rate is 20%. The cost of equity is 9%, coupon rate on debt is 7%, and the Yield to Maturity on debt is 4%. What is the firm's Weighted Average Cost of Capital? Use WACC's formula