Corporate taxes Tantor Supply, Inc., is a small corporation acting as the exclusive distributor of a major line of sporting goods. During 2021 the trm earned $1,004,200 before taxes a. Calculate the firm's tax liability b. How much are Tantor Supply's 2021 after-tax earnings? c. What was the firm's average tax rate? d. What was the firm's marginal tax rate? GREEN) a. The firm's tax liability is $ (Round to the nearest dolar) b. The firm's after-tax earnings is $ (Round to the nearest doftar.) c. The firm's average tax rate was. d. The fem's marginal tax rate was