Final answer:
Jade, Lindsay, and Abbi all qualify as dependents for Jamel and Jennifer's joint tax return according to IRS criteria, as they all meet the age, support, and student status requirements.
Step-by-step explanation:
Jamel and Jennifer, who have been filing a joint return for 30 years, may claim their daughters as dependents if they meet the criteria set by the IRS. For a child to qualify as a dependent, the child must be either under age 19 at the end of the year or under age 24 and a full-time student, and must not have provided more than half of their own support for the year. Considering the ages and situations of their daughters:
- Jade, age 12, qualifies as a dependent because she is under age 19 and does not provide more than half of her own support.
- Lindsay, age 17, also qualifies as a dependent on these same grounds.
- Abbi, although 22, still qualifies because she is a full-time student under the age of 24 who does not have any gross income and does not provide more than half of her own support.
In conclusion, Jade, Lindsay, and Abbi all qualify as dependents of Jamel and Jennifer for the filing of their joint tax return.