Evening and part-time openings around Raleigh - 19 weeks in

I am looking for part-time work that fits around school hours and found a few evening shifts near Raleigh. There are 4 people counting on me, so I am trying to be careful. Some roles have a small tuition benefit. How many hours do they guarantee?

I worked evenings at a hotel. The hours were steady and the team was friendly, but weekends were busy.