Answer:
0.1526 or 15.26%
Step-by-step explanation:
Capital percent of equity (We) = 76%
Capital percent of debt (Wd) = 24%
Before-tax cost of debt (Cd)= 13%
Cost of equity(Ce)= 17%
Weighted-average tax rate is (Tx) = 25%
The weighted average cost of capital is given by the following expression:

Note that this expression accounts for the tax rate deduction.
JB's WACC is:
