BB Company plans expansion. Financed by selling 54 million in new debt and 68 million in new common stock. The before tax required rate of return on...

BB Company plans expansion.  Financed by selling 54 million in new debt and 68 million in new common stock.  The before tax required rate of return on debt is 8.78% and required rate of return on equity is 15.41%- The company is in the 34% tax bracket. What is average cost of capital.