The Purplemath Forums

I was never very good at algebra, and now that I've been out of school for five years I've forgotten most of the formulas. I'm prepping for my Compass test so that I can apply at a community college and I'm having a really hard time with a lot of the practice questions for advanced algebra. Rate pro...

Ooh, that helped a ton! Not only was I able to complete this question, but all the TRD problems as well. Thanks a lot!