To express the situation as an inequality, we need to account for the total revenue generated from both the students and the other attendees, and ensure it is at least equal to the cost of the tent, which is $350.
The revenue from the students is given by \(0.50s\) (where \(s\) is the number of students) and the revenue from the other attendees is given by \(2.25a\) (where \(a\) is the number of other attendees).
The inequality can be expressed as:
\[ 0.50s + 2.25a \geq 350 \]
This inequality ensures that the total revenue from both groups of attendees is enough to cover the cost of the tent.