How much should we pay a babysitter?

What do you guys think is a good idea to pay a baby sitter? I have three kids, one is school age. Taking to and from school would be on me but the other two will be home. Min wage is $14.49 in my state. Would you pay x amount for the kids and x amount for the hours? Not sure how to pay. Also, is there away I can ask the courts to have the kids non-custodial parent help pay? I know they can pay half for the daycare which is what’s happening but I’d like to have them at home more than anything. Thank you! Sorry if I don’t reply to all sometimes my phone only shows half of the comments!