NU Inc. has 80 semi-annual bonds outstanding that are selling at $1,047 each.The coupon rate is 3%. The maturity is 25 years. The firm has 5,000 shares of common stock outstanding at a market price of $20 a share. The stock has a beta of 1.5. The U.S. T-bill is yielding 4 percent. The market risk premium is 8 percent. If the tax rate is 21 percent, what is the weighted average cost of capital, assuming all interest is tax deductible? (Please answer in a decimal format and keep 4 decimal places. Answers in percent will not receive credits.)