In 2020, Bartley Corporation's federal income tax due was $147,000. Compute the required installment payments of 2021 tax in each of the following cases: Required: a. Bartley's 2021 taxable income is $440,000. b. Bartley's 2021 taxable income is $975,000. c. Bartley's 2021 taxable income is $2,100,000. X Answer is complete but not entirely correct. Amount $ a. Total installment payments b. Total installment payments c. Total installment payments $ 92,400 204,750 X 441,000 $