What is the weighted average cost of capital of Greentail Co$.$ if it has $130,000$ bonds outstanding priced at $100\%$ of par, $$75$ million of bank debt, and $15$ million common shares outstanding priced at $$24?$ The yield to maturity on bonds is $4\%,$ the bank's interest rate is $6\%,$ the cost of common equity is $14\%,$ and the tax rate is $10\%.$