If you want to improve your SAT score to a 1500+, I suggest that you review Algebra 1 and Geometry. I say this because if you practice for the SAT only, it may seem as if you have mastered the general concepts of such subjects though you haven’t. It may seem prolonged, but it’s very helpful. If you choose to do so, you should use Big Ideas Math Algebra 1 and Geometry. They’re actual math textbooks, and it covers a lot of material covered on standardized tests, such as the SAT, ACT, PSAT, SHSAT, GRE, and etc.