1. Heli Corp. has a total long term capital of $5,200,000; of which $2,100,000 is common equity, $200,000 is preferred stock, and the rest is long-term debt. Its after-tax cost of debt is 4.6 percent, the cost of preferred stock is 6 percent, and the cost of common equity is 9.8 percent. What is Helis WACC?