Paul earns $5 per hour working after school. He needs at least $210 for a stereo system. Write and solve an inequality that describes the number of hours h he must work to reach his goal. 5h ≤ 210; at least 42 hours 210h ≥ 5; more than 42 hours 5h ≥ 210; at least 42 hours 5h > 210; more than 42 hours