College algebra may not be the course you need.
Some students require a statistics course.
Some students need an overview of mathematics contained in a math course for liberal arts majors. Some students may need to take the math courses required for a major in elementary education. Some students have a very substantial background in math and may be ready for precalculus or calculus when entering college. The placement exam and specific requirements for majors will give you more information about the appropriate course for you to take.