Marcel brought in 40 cookies to share equally with his classmates.

Let t represent the number of classmates Marcel has.

Which expression could be used to find the number of cookies each classmate received?

40/t

To find the number of cookies each classmate received, we need to divide the total number of cookies Marcel brought in (40 cookies) by the number of classmates he has (t classmates).

Therefore, the expression that could be used to find the number of cookies each classmate received is:

40 / t