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I want to you solve the question and show the fourmal

What is the expected rate of return on equity if the firm has a 35% tax rate, a 10% rate of interest paid on debt, a 15% WACC and a total debt ratio of 60%? b) What is the proportion of debt financing for a firm that expects a 35% return on equity, a 20% return on assets, and a 15% return on debt? Ignore taxes