For a class project, Zachary made a square-shaped model of the park near his house. Each side of his model is x inches long.
Pick all the expressions that represent the perimeter of Zachary's model.
The perimeter of a square is the sum of the lengths of all its sides.
Since each side of Zachary's model is x inches long, the perimeter of his model can be represented by the expression:
4x
So, the expression that represents the perimeter of Zachary's model is 4x.