Answer :

Abdoul, this is the solution to the problem:

Goal of the club : raise at least $ 600

Price of each car : $3

Let c the number of cars that the club has to wash

In consequence, the inequality that represents this situatiion is:

Total money raised ≥ 600

Total money raised = 3c

Thus,

3c ≥ 600

(We use higher and equal symbol because the statement says "at least 600". If the statement would say, "more than 600", we shoould use >)