I want to see intermediate steps and formulas.
Question: California Real Estate, Inc. currently is an all-equity firm, the current expected rate of return on the firm's equity is 20%, risk free rate is 5% and the market risk premium is 10%. The firm is considering a capital structure change from zero debt to a debt-to-equity ratio .5, given the corporate tax rate is 50%, what is the equity Beta under the proposed change?