You have been through college right? Have you taken the sciences?
I was required to take:
The Algebras (through College Algebra's)
The sciences (Anatomy & Physiology 1 and 2)
English Comp 1 and 2
Psychology 1 and Developmental Psychology
All before applying to my nursing school. Now the schools in your area may have different pre-reques.
Once accepted to Nursing School I had to take a 6 week crash, and I mean crash, course in Math for Nurses, then the clinicals began.
You can contact your local university or community college for the requirements for your state.
Just a little FYI......... Community Colleges typically have a smaller student/instructor ratio, hence you tend to learn more.