NAME Assume Donna, a single taxpayer with no dependents, will have $36,000 worth of deemed taxable income for the year 2021 at her current job. She was given the opportunity to make an additional $15,000 teaching some classes at her local university during that year in her spare time. Answer the questions below. a) What is Donna's federal income tax liability assuming she does not take the teaching side job for 2021? b) What is Donna's federal income tax liability if she does take the teaching side job for 2021?