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 we have 4+ XX with a small four then we have X plus X plus X plus X and then we have 4X which is the correct answer.

The correct expressions that represent the perimeter of Zachary's model are 4X and X + X + X + X.