For tax year 2017, determine the number of personal and dependency exemptions in each of the following independent situations:
a. Leo and Amanda (ages 48 and 46, respectively) are husband and wife and furnish more than 50% of the support of their two children, Elton (age 18) and Trista (age 24). During the year, Elton earns $4,500 providing transportation for elderly persons with disabilities, and Trista receives a $5,000 scholarship that is used entirely for tuition at the law school she attends.
b. Audry (age 45) was divorced this year. She maintains a household in which she, her ex-husband (Clint), and his mother (Olive) live and furnishes more than 50% of their support. Olive is age 91 and blind?