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a. Briefly explain cost of equity, cost of debt and Weighted average cost of capital. b. Finding the WACC : Given the following information for PWD Power Co., find the WACC. Assume the company's tax rate is 35 percent. Debt: 9,000 5.0 percent coupon bonds outstanding, $1,000 par value, 20 years to maturity, selling for 95 percent of par; the bonds make semiannual payments. Common stock: 260,000 shares outstanding, selling for $63 per share; the beta is 1.25 Preferred stock: 12,000 shares of 7.5 percent preferred stock outstanding, currently selling for $97 per share. Market: 12 percent market risk premium and 6 percent risk-free rate