My 10yr old daughter is rude, disrespectful and argues a lot. Grounding her hasn't helped. What can I do?

See below. Make certain that she knows what you expect from her for her behavior. Also, all care takers need to be consistent with expected behavior and consequences that will occur. She can have a reward system set up. Also, taking away privileges might help. If nothing is working, i would consider family therapy. And, always remember to reinforce good behavior.