Delon starts with 37 tickets and uses 4 tickets for the carousel. To find out how many tickets he has left for the roller coaster, we can subtract the tickets used for the carousel from the total number of tickets:
\[ 37 - 4 = 33 \text{ tickets remaining} \]
Each ride on the roller coaster uses 3 tickets. To determine how many times Delon can ride the roller coaster, we divide the remaining tickets by the number of tickets per ride:
\[ \frac{33}{3} = 11 \]
Thus, Delon can ride the roller coaster 11 times.
The correct response is:
11