Answer:
the company's wacc is 8.72 %
Explanation:
Weighted Average Cost of Capital (WACC) is the minimum return that a project must offer before it can be accepted.
WACC Calculation are as follows :
Capital Source         Weight         Cost         Total
Common stock           55%    12.1666666 %      6.69166 %
Debt                   45%       4.50 %         2.025%
Total                  100%                      8.72 %
Cost of Common Equity is Calculated as follows :
The data available allows us to use the Dividend Growth Model to calculated the cost of common equity.
Cost of Common Equity = (Next year`s Dividend/Current Market Price of a share) + Expected growth rate.
                    = ( $2.50/ $37.50) + 5.50%
                    = 12.1666666 %
Cost of Debt is Calculated as follows :
Cost of Debt = Interest × ( 1 - tax rate)
           = 7.50% × ( 1 - 0.40)
           = 4.50 %