Final answer:
The total amount of money Tammy, Jose, and Dante have is 6 times the amount Tammy has. The correct option is a) $X/5.
Step-by-step explanation:
Let's represent the amount of money Tammy has as X. Since Dante has 4 times what Tammy has, Dante would have 4X. Tammy has less than Jose, so we can represent Jose's amount as X + Y, where Y is some positive number. The total amount of money they have is X + 4X + (X + Y) = 6X + Y. Therefore, the answer is option a) $X/5.