please help with #s 2,3 & 4. please do in Excel and show all calculations. thank you.

Assume you have just been hired as a business manager of Gary's Guacamole a regional health food restaurant chain. The company's EBIT was $100 million last year and is not expected to grow. The firm is currently financed with all equity and it has 10 million shares outstanding. When you took your corporate finance course, your instructor stated that most firm's owners would be financially better off if the firms used some debt. When you suggested this to your new boss, he encouraged you to pursue the idea. As a first step, assume that you obtained from the firm's investment banker the following estimated costs of debt for the firm at different capital structures: If the company were to recapitalize, debt would be issued, and the funds received would be used to repurchase stock. Gary's Guacamole is in the 25 percent state-plus-federal corporate tax bracket, its beta is .95 the risk-free rate is 5 percent, and the market risk premium is 7.5 percent. Now, to develop an example which can be presented to Gary's Guacamole management to illustrate the effects of financial leverage, consider two hypothetical firms: Firm U, which uses no debt financing, and Firm L, which uses $35,000 of 8 percent debt. Both firms have $80,000 in assets, a 25 percent tax rate, and an expected EBIT of $15,000. 2. Construct partial income statements, which start with EBIT, for the two firms. 3. Now calculate ROE for both firms. 4. What does this example illustrate about the impact of financial leverage on ROE