Answer:
a) 
b)
Step-by-step explanation:
Given: A thrill ride at an amusement park holds a maximum of 12 people per ride.
To find :
a. An inequality that you can use to find the least number of rides needed for 15,000 people.
b. Then find the least number of rides needed for 15,000 people.
Solution :
Let x represent the number of rides.
a) A ride holds maximum of 12 people = 12x
To find an inequality of the least number of rides needed for 15,000 people.
The equation is 
b) Find the least number of rides needed for 15,000 people.
Solve the equation,



Answer is x=1250