i need help solving this

Given the following information for Lightning Power Co., find the WACC. Assuming the company's tax rate is 21%. Debt: 12,000 bonds with a 4.6% coupon outstanding. $1,000 par value, 25 years to maturity, selling for 105% of par, the bonds make semiannual payments. Equity: 575,000 shares outstanding, selling for $81 per share; the beta is 1.04,7% market risk premium and 3.2% risk- free rate 78