dialogue for girls who play ping pong after school each girl played exactly three games of ping Pong with each of the other girls how many games of ping Pong were play altogether

Hello from MrBillDoesMath!

  Perimeter = 17x + 4

Discussion:

(So you are trying to sneak #2 out of me too );

Perimeter = sum of lengths of sides. Starting at the bottom of the figure and proceeding counterclockwise.

Perimeter =  (3x +2) + (3x+2) + (4x-1) + (4x-1) + (3x + 2) .

Separate and combine x's and constants:

Perimeter = (3x + 3x+4x+4x+3x) + (2 + 2 -1 -1 + 2) =

                = 17x + 4

You answer has the wrong constant value ( you wrote 17x + 1. The constant should be 4)

Thank you,

MrB