OP, take yourself to the teenagers forum. She is being a typical teenager and frankly, they are quite vile. Rudeness, selfishness, belligerent, unreasonable, yep, that's teenagers.
It's easy to assume that what they've turned into is a mapping of what they will continue to become as they turn adults. In most cases, if they were pleasant people before, and there are growing up in stable families where their emotional needs have been listened to, they get out of that awful phase and return to be lovely people.
It's hard to believe it at the time. Many people told me that when my kids, especially my lovely DS turned into the most unloveable boy. He went through the typical phases, anger explosions, that turned into apathy and uninterest into anything, to what seemed to be genuine depression. Then suddenly, as he was doing his GCSEs and decided to work hard, he gradually found some confidence, and after he started working over the summer, he was transformed.
5 years ago, I would ask him to do the one off simple task and I might as well have asked him to read 10 books in a row. Rudeness, why should I etc... last night, I got the washing out, and as soon as he saw me, he said 'leave it mum, I'll do it'. I said that there were things of mine too and he responded 'yes, that's ok, I can do yours too, it's fine'!
My advice is not to ignore it all, but don't get into battles. Just continue to ask him for help calmly and don't rise to the response. Above all, don't start believing that he is a horrible person, because the worse that can happen for such teenagers is to believe that everyone hates them, leading to their self-esteem being distroyed, which is what is causing the bad behaviour in the first place.