7. Child and Dependent Care Credit. (Obj. 2) Todd and Jo Mendin pay their 17-year-old daughter, Erin, \$5,000 to look after their ten-year-old son, TJ. The Mendins file a joint return and claim Erin and TJ as their dependents. The Mendlins' AGI is $84,000. Both spouses work and each has wages in excess of $30,000. a. Compute the Mendlins' child and dependent care credit. b. How, if at all, would your answer to Part a. change if Erin were 22 years old, but still claimed as a dependent on her parents' return? c. How, if at all, would your answer to Part a. change if the Mendins paid Todd's mother to look after TJ