HELP! I'm 24 and watching a 5th grade boy and 9th grade girl!?

Ok first the 9 grader should be able to help have them do chores maybe clan the kitchen or do dishes offer them a little bit of money or on the weekend take them out to icecream try and get the kids to help you or if you dont have time to cook order pizza heck get the 9th grader to make some ma and chees or toast and eggs they should be able to cook anyways good luck