3. Firm Z has issued 1,000,000 bonds. Each bond is priced at $929 and has a face value of $1000. It pays annual coupon payments and has a coupon rate of 3%. The bonds will mature in 20 years. Stock price of Firm Z is $10, and there are 50 million shares outstanding. There are 2 million shares of preferred stock, which offers $2 dividend and is priced at $40. Equity beta of Firm Z is 1.5 and current market portfolio yields 8% and the risk free rate is 2%. Corporate tax rate is 30%. Find the costs of debt, equity, preferred stock and WACC.