3 Required information [The following information applies to the questions displayed below.] Lacy is a single taxpayer. In 2020, her taxable income is $46,800. What is her tax liability in each of the following alternative situations? Use Tax Rate Schedule, Dividends and Capital Gains Tax Rates. Estates and Trusts for reference. (Do not round intermediate Zalculations.) a. All of her income is salary from her employer Tax liability Required information [The following information applies to the questions displayed below.) In 2020, Elaine paid $2,840 of tuition and $800 for books for her dependent son to attend State University this past fall as a freshman. Elaine files a joint return with her husband. What is the maximum American opportunity tax credit that Elaine can claim for the tuition payment and books in each of the following alternative situations? (Leave no answer blank. Enter zero if applicable.) b. Elaine's AGI is $172,000. (Round your intermediate calculations to the nearest whole dollar amount.) American opportunity tax credit