Question

is this an expression or an equation?
m = 45·2
expression
equation

Explanation:

Step1: Recall definitions

An expression is a combination of numbers, variables, and operations. An equation has an equal sign, showing two expressions are equal.

Step2: Analyze \( m = 45 \cdot 2 \)

This has an equal sign, equating \( m \) to \( 45 \cdot 2 \). So it's an equation.

Answer:

equation