I have not read all of the replies so sorry if this is a repeat, but I went back to school at 38 and I had already failed Algebra twice. It scared the crap out of me to think I was going to have to do it AGAIN!! Well us olduns seem to have better study habits then the younguns cause bar none the olduns were the best in the class. Every class. I wouldn't worry about it much. Just the fact that you are asking the question says you will do fine. If the teachers are anything like ours were when they see that you are serious about getting an education they will bend over backwards to help you get it.