12-6A. (Cost ofdebt) The Zephyr Corporation is contemplating a new investment to be financed 33 percent from debt. The firm could sell new $1,000 par value bonds at a net price of $945. The coupon interest rate is 12 percent, and the bonds would mature in 15 years. If the company is in a 34 percent tax bracket, what is the after-tax cost of capital to Zephyr for bonds?