You have been given the following facts and assumptions concerning ABC Corp. at December 31, 2013. Yield to maturity on long term government bond is 5.00%. Yield to maturity on company long term government bond is 7.0%. Coupon rate on company long term bond is 7.0%.Market price of risk is 8.0% along with estimated company beta value of 1.5.Stock is selling for $40 in the market and 250 million shares are outstanding. Assuming that book value of equity is $5240 million along with book value of interest bearing debt of $1250 million. Existing tax rate stands at 35%. Given all the information estimate ABC Corp's after-tax cost of debt capital. ?