How to calculate the following question? Thanks.

The Red Hen currently has a debttoequity ratio of .45, its cost of equity is 13.6 percent, and its

beta is 1.49. The pretax cost of debt is 7.8 percent, the tax rate is 35 percent, and the riskfree rate is 3.1

percent. The firm's target debttoequity ratio is .5. What discount rate should be assigned to a new

project the firm is considering if the project is equally as risky as the overall firm and will be financed

solely with debt?