Respuesta :

Answer:

17x+5

Step-by-step explanation:

1. Perimeter of triangle

P = 2(L +W)

P = 2((4.5x+7) + (4x-4.5)) = 2(8.5x+2.5)

P = 17x+5

17x+5
Rectangle perimeter- P= 2(l+w)