Final answer:
When sharing baseball cards equally among 4 people, each person's share can be found by dividing the total number of cards by 4.
Step-by-step explanation:
In this scenario, there are 4 people sharing equally c baseball cards. To find each person's share, you can divide the total number of cards by the number of people.
So, each person's share would be c/4.
For example, if there are 20 cards, each person would get 20/4 = 5 cards.