Final answer:
Teresa's earned income is $4,350 and her gross income is $4,500.
Step-by-step explanation:
Teresa's earned income includes her part-time job earnings as a pet-sitter and dog walker, which are $4,200 in 2019. Additionally, she received $150 in interest on her savings account. Therefore, Teresa's earned income is $4,200 + $150 = $4,350.
Her gross income is the sum of her earned income and any other income she may have, which in this case is $4,350 from her part-time job and $150 in savings account interest. Therefore, her gross income is $4,350 + $150 = $4,500.