Problem 1 Calculate the effective (after-tax) cost of debt for Apopka Clinic, a for-profit healthcare provider, assuming the interest rate set on its debt is 10% and its tax rate is set at the following levels: a. O percent b. 25 percent c. 40 percent Problem 2 Tampa Hospital has a target capital structure of 40% debt and 60% equity. Its cost of equity estimate is 12% and its cost of tax-exempt debt estimate is 6.2%. What is the hospital's corporate cost of capital? Please show your work. Problem 3 Burleson Clinic has obtained the following estimates for its costs of debt and equity at various capital structures: After-Tax Cost of Debt (%) Cost of Equity (%) Proportion of Debt 0% 20% 40% 60% 80% 14.0 15.0 17.0 6.2 7.5 9.8 15.0 20.0 24.0 What is the firm's optimal capital structure? (Hint: Complete the following table. When done, identified the optimal capital structure.) Proportion of Equity Corporate Cost of Capital After-Tax Cost of Debt (%) Cost of Equity (%) 14.0 Proportion of Debt 0% 20% 40% 60% 80% 6.2 7.5 9.8 15.0 15.0 17.0 20.0 24.0