Jake and Carol Bucks are married and have one dependent child, Susan, who is 10 years old. During 2021 Tom's wages were $24,000 and Carol's were $16,000.

a. Assume they file a joint return for 2021, their earned income credit is (show work)

b. How much child tax credit can the Bucks' claim in 2021? (show work)

c. To allow them to work, the Bucks' incur $3,000 in daycare expenses for Susan. What is the Bucks' credit for child and dependent care expenses for 2021? (show work)