Answer:
15.57%
Step-by-step explanation:
The WAAC (Weighted average cost of capital) is given by:
![WAAC = M*W_d*(1-T)+E*W_E](https://img.qammunity.org/2021/formulas/business/college/d6g7bme05q3mgkamyoh42zcm6rsi8eohw4.png)
Where M is the rate to maturity of the company's bonds, Wd is the fraction of debt, We is the fraction of equity, T is the tax rate, and E is the rate of cost of common equity. Applying the given data:
![0.115=0.09*0.4*(1-0.4)+E*0.6\\E=0.1557\\E=15.57\%](https://img.qammunity.org/2021/formulas/business/college/e2u03q0ef3bytl74mislnpuasc7mu4miul.png)
The company’s cost of common equity is 15.57%.