Do not use excel and show work

Sandoz Corporation is estimating its WACC. The company has 50,000 semi-annual bonds outstanding with a 7.5% coupon rate, $1,000 par value, 15 years to maturity, selling for 98.1 percent of par. Sandoz has 1 million common shares outstanding, currently selling for $50 per share with a beta of 1.08. In addition, there are 150,000 shares of 8% preferred stock outstanding, currently trading for $100 per share. The risk-free rate is 3% and the market risk premium is 11%. The marginal tax rate is 35%. Sandoz expects to pay a common share dividend of $4.44 during the next year and plans to increase it at an annual rate of 6% for the foreseeable future. a) What is the firm's pre-tax cost of debt? B) What is the firm's after-tax cost of debt (ra)? C) What is the firm's' cost of preferred stock (Cos)? d) What is firm's cost common stock (rs)