Show work, please! I need to understand how to calculate these!

40 Terrell Trucking Company is in the process of setting its target capital structure. The CFO believes that the optimal debt-to-capital ratio is somewhere between 20% and 50%, and her staff has compiled the following projections for EPS and the stock price at various debt levels: Debt/ Capital Ratio Projected EPS Projected Stock Price 20% $3.00 $33.50 30 3.60 36.75 3.80 35.75 50 3.60 33.25 Assuming that the firm uses only debt and common equity, what is Terrell's optimal capital structure? Choose from the options provided above. Round your answers to two decimal places. % debt % equity At what debt-to-capital ratio is the company's WACC minimized? Choose from the options provided above. Round your answer to two decimal places. %