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.
4+x
x+x+x+x
x^4
4x

3 answers

The expressions that represent the perimeter of Zachary's model are:

- 4+x (This expression adds the length of one side, x, to the sum of the other three sides, which are also x.)
- x+x+x+x (This expression represents adding together all four sides, which are each x inches long.)
- 4x (This expression represents multiplying the length of one side, x, by the number of sides, which is 4. This gives the total perimeter.)
Just pick one
4+x