Has Jodi provided more than 50 percent of the support in the following situations?

a. Jodi contributed $4,200 to her mother’s support during the year. Her mother received $5,300 in Medicare payments that were used to pay her medical expenses.

b. Jodi’s daughter was a full-time student.
Jodi paid $5,000 towards her daughter's living expenses. The daughter earned $4,800 from a part-time job and spent that plus $600 from her savings to help support herself.