1. The problem is to identify which of the given options are expressions. 2. An expression is a combination of numbers, variables, and operations (like addition, subtraction, multiplication, division) without an equality or inequality sign. 3. Let's analyze each option: - $2x + 2 = 8 + x$: This is an equation because it has an equality sign. - $7x + 2$: This is an expression because it is a combination of terms without an equality or inequality. - $2y - 3 > 11$: This is an inequality, not an expression. - $5a$: This is an expression. - $x - 3 = 0$: This is an equation. - $2 < 3x - 4$: This is an inequality. 4. Therefore, the expressions are $7x + 2$ and $5a$.