Final answer:
The inequality that represents the situation where the number of students in Mrs. Smith's class cannot exceed the number of desks she has is 'Number of students ≤ 30'.
Step-by-step explanation:
To represent the situation where the number of students in Mrs. Smith's class cannot exceed the number of desks she has, we can use the inequality:
Number of students ≤ Number of desks
In this case, the number of desks is 30, so the inequality becomes:
Number of students ≤ 30
This means that the number of students in Mrs. Smith's class must be less than or equal to 30 in order for all students to have a desk.