Saif Company has net operating income of $150000 per year. Saif Company uses no debt in its capital structure and the required rate of return to equity holders is 13 percent. Required: a. Calculate the value of the unlevered firm if the firm has a marginal tax rate of 0%. b. Calculate the value of the unlevered firm if the firm has a marginal tax rate of 40% c. Interpret the difference in your findings to parts a. and b