Corporate taxes Tantor Supply, Inc., is a small corporation acting as the exclusive distributor of a major line of sporting goods. During 2021 the firm earned $955,100 a. Calculate the firm's tax liability. before taxes. b. How much are Tantor Supply's 2021 after-tax eamings? c. What was the firm's average tax rate? d. What was the firm's marginal tax rate? a. The firm's tax liability is $ (Round to the nearest dollar.) b. The firm's after-tax earnings is $ (Round to the nearest dollar.) c. The firm's average tax rate was %. d. The firm's marginal tax rate was % CITO