Question

the function c(s) defines the number of cars needed to transport s students on a field trip. what is the meaning of c(12)=3? each car can transport 3 students. each car can transport 12 students. 3 cars are needed to transport 12 students. 12 cars are needed to transport 3 students.

Explanation:

The function $c(s)$ gives the number of cars for $s$ students. In $c(12)=3$, the input $12$ represents the number of students and the output $3$ represents the number of cars.

Answer:

3 cars are needed to transport 12 students.