Final answer:
The inequality that represents this situation is 11s + 6 > 450, where 's' represents the number of students on each bus.
Step-by-step explanation:
The number of students traveling by car is given as 6, so the number of students traveling by bus can be found by subtracting 6 from the total number of students. Let's use the variable 's' to represent the number of students on each bus. The inequality that represents this situation is: 11s + 6 > 450. This means that the product of 11 and 's', added to 6, is greater than 450.