Elijah has 4 new dogs and wants to build a square fence in his backyard for them. He wants the sides to each measure (x + 6) feet. Which expression below would he use to find the perimeter of the fence?


  1. 4(x+6)
    Perimeter = the sum of all the sides.
    Square has equal length for all its only 4 sides
    Therefore if one side is x+6
    Then it is 4 times x+6


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