a. Calculate Boisjoly's federal income taxes by using the corporate tax rate structure in the popup window, b. Now calculate Boisjoly's average and marginal tax rates. c. What would Boisjoly's federal income taxes be if its taxable income was $29.4 million? d. Now calculate Boisjoly's average and marginal tax rates with taxable income of $29.4 milion. Click on the following icon in order to copy its contents into a spreadsheet.)