What to expect when getting a tooth pulled?

Hello there.
My boyfriend is getting 2 teeth pulled top back molars. He’s going to the Good Samaritan Dental Clinic, it’s a discounted clinic because we don’t have much money and no insurance. It’s going to be about $70 he is worried because of the price they won’t numb him, I’m sure they will. I believe it would be malpractice if they didn’t. Also is there anything he should do before or after? Or anything to be expected?