Trey claims a dependency exemption for both of his two daughters, ages 14 and 17, at year-end.

Question:

Trey claims a dependency exemption for both of his two daughters, ages 14 and 17, at year-end. Trey files a joint return with his wife. What amount of child credit will Trey be able to claim for his daughters in each of the following alternative situations?
a. His AGI is $100,000.
b. His AGI is $120,000.
c. His AGI is $122,100 and his daughters are ages 10 and 12.