Linear, quadratic, and systems of equations.
The Alimov curriculum is a staple of Russian algebra education, and its is designed as a bridge to higher-level mathematics. If you’re looking for a review of using a GDZ (Готовые Домашние Задания) for this specific material, The Material: Alimov 7–9 Review Linear, quadratic, and systems of equations
Graphing and understanding properties of linear and power functions. Linear, quadratic, and systems of equations