Karla (25) is unmarried and was a full-time student from January through June. Karla worked part-time, but did not provide more than 50% support for herself or her son, Sam (1). Karla and Sam lived with Karlas parents, Ron and Sue, the entire year. Karlas wages were $7,204. Rons wages were $52, 013; Sues wages were $38,750; Sams income was $350. Karla will allow her parents to claim Sam this year. Karla, Sam, Ron, and Sue had health care coverage through Rons employer. Ron and Sue are not claiming any education or retirement savings contributions on their married filing jointly return.

a. What is the sum of Karlas standard deduction and her personal exemptions?

b. What is the sum of Ron and Sues standard deduction and their personal exemptions?

c. What is the amount of Karlas earned income credit?