General Talc Mines has compiled the following data regarding the market value and cost of the specific sources of capital. Market value of common stock is $10 million.Market value of long-term debt is $90 million. The corporate tax rate is 35%. Source of Capital After-Tax Cost Long-term debt 89 Common stock equity The weighted average cost of capital using market value weights is O 11.7 percent 0 6.58 percent 0 9.10 percent 0 17.5 percent