13. Clark Explorers Inc., an engineering firm has the following capital structure: Market price Outstanding units Book value Cost of capital Equity $30.00 120,000 $3,000,000 15% Preferred Stock $110.00 10,000 $1,000,000 12% Debt $955.00 6,000 $6,000,000 9% Using market value and book value (separately, of course), find the adjusted WACC for Clark Explorers at tax rate equal to 35%