Your company has a target capital structure of 44 percent common stock, 19 percent preferred stock, and the remaining percent debt. Its cost of equity is 13.2 percent, the cost of preferred stock is 9.2 percent, and the pretax cost of debt is 5.6 percent.

The relevant tax rate is 16 percent. What is the company's WACC?

the correct answer is 9.3

please include steps of exactly how to get to this answer make it as simple as possible please!