3. Leslie is driving 850 miles home from vacation. She drives a constant speed of 65 miles per hour. She wants to stop for the night when she is no more than 300 miles from home. How many hours will she need to drive? 4. Steve earns $16 per hour plus $150 in bonuses. Carly earns $14 per hour and $200 in bonuses. After how many hours will Steve's pay be more than Carly's?

5. The science club is going on a field trip to the science museum. The club has at most $800 to spend on the trip. The bus for the trip costs $100, and meals at the museum cost $4.50 per student. If admission to the museum is $12 per student and $16 per adult, and there are six chaperones attending, how many students can go on the trip?