Zill Inc. is financed 60 percent by equity and 40 percent by debt. Its current long-term debt maturity of 7.25%. The firm expects to earn $8 million in net income next year and paid 38 dividends to shareholders. The expected dividend growth rate is 5%. The stock is currently share, and the flotation cost is 3.5% for new common stock. The firm has 1,000,000 shares outstanding and its marginal tax rate is 35%. What is the Zill's WACC if they want to raise $ to fund their investment projects