The document describes a system of inequalities representing the speed limits for cars and trucks on the highway. Cars must drive between 45 and 65 miles per hour, while trucks must drive between 40 and 55 miles per hour. The system is graphed with the inequalities 45 ≤ c ≤ 65 and 40 ≤ t ≤ 55, where c represents car speed and t represents truck speed.