EXHIBIT 8-8 Child Tax Credit Phase-Out Threshold Trey has two dependents, his daughters, ages 14 and 18 , at year-end. Trey files a joint return with his spouse. What amount of child tax credit (either as a child or a qualifying dependent) will Trey be able to claim in 2022 for his daughters under each of the following alternative situations? Use Exhibit 8-8. Required: a. His AGI is $108,800. b. His AGI is $427,000. c. His AGI is $420,800, and his daughters are ages 10 and 12