Given the following information for Lightening Power Co., find the WACC. Assume the company's tax rate is 21%. Debt: 16000 6.4%-Coupon Bond outstanding, $1000 par value, 25 years to maturity, selling for $108 percent of par, the bonds make semi-annual payments Common Stock: 535,000 shares outstanding, selling for $81 per share, beta is 1.20 Preferred Stock: 20,000 shares of 4.2 percent preferred stock outstanding, currently selling for $92 per share. The par value is $100. Market: 7% market risk premium and 3.1% risk-free rate