Flexible shifts hiring in Minneapolis - first time posting

I am looking for part-time work that fits around school hours and found a few evening shifts near Minneapolis. There are 3 people counting on me, so I am trying to be careful. They can give a schedule two weeks ahead. How many hours do they guarantee?

Ask whether the schedule is posted in advance and how they handle swaps. It matters a lot with kids.

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