You are given the following information for Lightning Power Co. Assume the companys tax rate is 30 percent. What is the company's cost of equity, cost of debt and cost of preferred stock? Debt: 6,000 6.1 percent coupon bonds outstanding, $1,000 par value, 15 years to maturity, selling for 104 percent of par; the bonds make semiannual payments. Common stock: 330,000 shares outstanding, selling for $51 per share; the beta is 1.07. Preferred stock: 11,000 shares of 4 percent preferred stock outstanding, currently selling for $71 per share. Market: 6 percent market risk premium and 4.10 percent risk-free rate.