One major factor in successfully completing mathematics classes is appropriate background. Most lower division classes depend heavily on the knowledge and skills that should have been learned in prerequisite classes. Because mathematics is not only something a student learns about but is something the student must do, mathematical knowledge and skills need to be used to maintain sufficient facility. If it has been more than six months since you have taken a mathematics class, a class which uses mathematics heavily or been employed in a job that uses mathematics, it is likely that you will need to review and practice doing mathematics before taking additional classes.
Before embarking on any of options below, you should discuss the possibilities with your academic adviser.
If you have gotten too low a score on the Calculus Readiness Exam, it has been several months since you had a mathematics course or you feel that you are not ready for Math 2144 there are some options available.
Precalculus covers material from Math 1513 College Algebra and Math 1613 Trigonometry, but skips some things and moves through the remaining material at a fast pace. If you have had courses similar to high school algebra I and II and geometry, but feel you are unprepared for Math 1715 Precalculus, there are some options.