1.Steel Dynamics Inc. (STLD) has a 18-year bond with 9% coupon rate paid semiannually. The bond is currently selling at 125% of par value. What is the before-tax cost of debt of the company?

2.Western Copper and Gold Corporation (WRN) has preferred stock outstanding. The preferred stock pays a $5 dividend per share. If the current stock price is $82, what is the cost of preferred stock for the company?

3.Concert Pharmaceuticals Inc. (CNCE) considers raising capital by issuing new equity. What is the firm's cost of (common) equity if the stock beta is 2.3? The T-bond rate is 4% and the S&P 500 return is 11%