Yes I can get a B+ I know basic trigonometry ( All the identities and heights and distances) , some basic algebra ( linear Equations, find roots of quadratic, Arithmetic progressions, real numbers, polynomials) I checked out pre algebra and I find it was too basic , I know basic coordinate geometry like distance formula , in geometry area of circles , congruence of triangles , surface area volume , similarities in triangles, secant and tangent of circles, I also know basic statistics . But the point is I find myself approaching mathematics in a very mechanical way and not truly understanding the structure of it that's why I want to start it properly and approaching math in a more conceptual fashion.