Answer:
$10.50
Explanation:
The first step is to determine the cost per student for the trip.
It cost $443.75 for 25 students, so
TS = 443.75 / 25 = $17.75 per student.
From that $17.75, we know we should remove $7.25 for the lunch in order to get the entrance fee:
EF = 17.75 - 7.25 = 10.50
The entrance fee for one student was $10.50