The company's WACC is 9.39%.
We can calculate the WACC using the following formula:
WACC = (E/V x Re) + ((D/V x Rd) x (1 - T))
Re = cost of equity (required rate of return)
Rd = cost of debt (yield to maturity on existing debt)
T = tax rate
In this case, we know the following:
E/V = 65%
D/V = 25%
Re = 11%
Rd = 8%
T = 23%
Now we can plug all of our values into the WACC formula:
WACC = (0.65 x 0.11) + ((0.25 x 0.08) x (1 - 0.23))
= 9.39%.