Review: ★★★★★★☆☆☆☆

Source: Khancademy

Subject covers: Absolute value & piecewise functions, Quadratics: Multiplying & factoring, Quadratic functions & equations, Irrational numbers, Complex numbers, Rational exponents and radicals, Exponential models, Similarity, Right triangles & trigonometry, Solid geometry, Circles, Conic sections, Probability.