1. Mr. Kim is only ever seen in season 1. While that doesn’t answer where he went, it does answer the ‘ever’ part of that question. He does exist. He just disappears.
6. Just Lorelei and Sherry. Gigi was enough for him to ever have to deal with on his own.
9. Luke helped them. Even though he said that he didn’t. He totally did. And TJ had some money saved up.
12. I’m too lazy to count.
15. We live in an economy where we live hand to mouth. She could have bought those on consignment in NYC for reasonable prices. Also, the only people who have “private school tuition” kind of money just laying around are people like her parents. No one would have that kind of money on hand immediately. It would be invested if they had a spare $20K or something.
26. Yes and they are the only edible thing on the menu.