I have a 10 year old daughter and a 6 year old son. You would hang out with them while they finish dinner. After that play some games and stuff until bed time. They read to them selves so just some supervision is needed. The rest is just hanging out until we get home from dinner.
Please have you own car to get to and from my house. No need to drive the kids anywhere and they will be done with activities like swimming for the day.