Answer: 8.04%
Step-by-step explanation:
First find the after-tax cost of debt;
= 7.75% * ( 1 - 40%)
= 4.65%
Then Expected return on equity;
= (Next dividend / (Price * (1 - F)) ) + g
= (0.65 / (15 * (1 - 10%)) ) + 6%
= 10.81%
WACC = (Weight of debt * cost of debt) + (weight of equity * cost of equity or expected return)
= (0.45 * 4.65%) + (0.55 * 10.81%)
= 8.04%