1. Lacy is a single taxpayer. In 2019, her taxable income is $40,200. What is her tax liability in each of the following alternative situations? All of her income is salary from her employer.

2. In 2019, Carson is claimed as a dependent on his parents' tax return. Carson's parents provided most of his support. What is Carson's tax liability for the year in each of the following alternative circumstances? Carson is 17 years old at year-end and earned $14,825 from his summer job and part-time job after school. This was his only source of income.

3. In 2019, Elaine paid $2,520 of tuition and $1,380 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? Elaines AGI is $100,500.