The shaded area represents a cement walkway around a pool. State the algebraic expression that represents the difference between the outside perimeter of the walkway and the perimeter of the pool.

The shaded area represents a cement walkway around a pool State the algebraic expression that represents the difference between the outside perimeter of the wal class=

Respuesta :

Large perimeter :  2(2x+12)+2(2x-1+7+7)=8x+50
Smaller perimeter : 2(2x-1)+2(12)=4x+22

Large perimeter - smaller perimeter =          4x+28