Dean's pretax accounting income and taxable income always are the same there are never any temporary or permanent differences. Its tax rate is 30% in years before 2019, 21% in 2019, and 20% after 2019. All of these rates are enacted into law. Dean's taxable income and net income before tax) were $25,000 in 2016 and $20,000 in both 2017 and 2018. In 2019, Dean's taxable loss is $80,000. This problem concerns accounting for the 2019 net operating loss. Dean's taxable income in 2020 turned out to be $25,000, and in 2021 it turned out to be $90,000. a. What is Dean's tax expense in 2020? b. What is Dean's taxes payable for 2021