Answer:
6 baseball cards.
Explanation:
We have been given that Dwight has 3 baseball cards, and Ellis has 9 baseball cards.
First of all, we will find total number of baseball cards by adding 3 to 9.


Since we need to divide baseball cards equally between Dwight and Ellis, so we will divide total number of cards by 2.


Therefore, Dwight and Ellis will have 6 baseball cards each.