Your school should offer a math assessment which will place you based on your current skill. When I went back to school I started at super basic remedial algebra, then skipped the next level of remedial algebra to go into college level algebra and trig. I didn't take an actual pre-calc class, but in hindsight I think I would have been better off if I had. I did fine in Calc 1 up until I blew off studying for the final which dragged my grade down to a C. I'm having a lot more trouble with Calc 2. One bit of advice I will offer, unless you're some kind of genius, these aren't the types of classes you can expect to do well in without spending a lot of time on them outside of class. Showing up, taking notes, and doing all your homework isn't enough. I can get A's all day long in Gen Ed classes with barely even showing up, but Calc 2, and math in general, requires working a lot of problems to gain a firm understanding of the material. Also, pay attention in algebra and trig because they aren't going away when you finish those classes.