Please give the process of calculating.

Problem 2. The beta for a company is 1.2, while the market risk premium is 5%. The tax rate of the company is 30%. The company has 1,000,000 shares of preferred stock outstanding that has an annual dividend of $5and a required return of 15%. The company also has $50,000,000 face value of bonds outstanding that have a market value of $66,000,000. The yield to maturity on the bonds is 10%. The risk free rate is 3%. Finally the company has 2,000,000 shares of stock outstanding. The stock pays a constant annual dividend of $2. The dividend of the stock is not expected to change. The book value of the debt is $50,000,000, while the book value of the preferred stock is $30,000,000, and the book value of the equity is $20,000,000. What is the weighted average cost of capital for this company