Answer:
14.82 %
Step-by-step explanation:
WACC = Cost of equity x Weight of equity + Cost of Debt x Weight of Debt
where,
After tax cost of debt = Interest x (1 - tax rate)
= 12 % x (1 - 0.25)
= 9 %
therefore,
Let the Cost of equity be Ce
12.20% = Ce x 0.55 + 9 % x 0.45
12.20% = 0.55 Ce + 4.05
Ce = 14.82 %
thus
Pearson's cost of common equity is 14.82 %