5. XY is a listed company that just published their last balance sheet (Dec 31, 2022), accompanied by last year's balance sheet (Dec 31", 2021). Management knows that the company's liabilities cost 7% a year, and that the company's stock has a beta equal to 0.67 . If S\&P 500 is expected to have a return of 5% a year and the risk-free rate is 4% a year, what is the weighted average cost of capital (WACC) of this company in 2022 and 2021 ? Remember that the cost of equity can be obtained using the CAPM formula. Don't consider tax benefits of debt