Q-2 (10 points) Taxation of Corporate Earnings. Last year, ACF Inc. has $321,000 in taxable income and tax rates are as in the following table: Taxable income Tax Rate First $50,000 $50,000 - $75,000 $75,000 - $100,000 $100,000 - $335,000 $335,000 - $10,000,000 $10,000,000 $15,000,000 $15,000,000 - $18,333,333 Over $18,333,333 15% 25% 34% 39% 34% 35% 38% 35% Table 1: Corporate income tax rates. (a) What is the ACF Inc.'s average tax rate? (b) What is the ACF Inc.'s marginal tax rate