4. North Inc has a perpetual expected EBIT of $200. The interest rate on debt is 12%. Assume that there are no taxes. a. what is the value of North Inc if the debt/equity ratio is .25 and its weighted average cost of capital is 16% ? What's the value of North's equity? What is the value of North's debt? What is the firm's cost of equity? b. Suppose the corporate tax is 30% and North has $400 in debt outstanding. If the unlevered cost is 20%, what's the value of North? What is the value of the firm's equity? What is the Wacc