PLEASE SHOW STEP BY STEP FORMULAS WITHOUT EXCEL ONLY FINANCIAL CALCULATOR

A firm's assets are financed 53% with Debt. The cost of debt is 5% and the cost of equity is 13%. Considering that tax rates are 33% ..... What is the Weighted Average Cost of Capital (WACC) of this firm? Type your answer as percentage and not as decimal (i.e. 5.2 and not 0.052). Round to the nearest two decimals if needed. Do not type the % symbol. 1.5 7.89 margin of error +/- 2%