Given the information provided here, what is this firm's WACC?

coupon rate on company bonds = 5.0%

years until maturity on the bonds = 14

current price of company bonds = $913.98

recent stock price = $28.15

dividend expected at the end of the next period = $1.79

annual growth rate of dividend = 2.5%

average effective tax rate over past five years = 31.0%

total liabilities = $725 million

total shareholders' equity = $475 million

no preferred stock