Respuesta :

Answer:

Length = 40 ft.

Step-by-step explanation:

Perimeter P = 2L + 2W    where L = the length and W = the width.

So we plug in W = 14 and P = 105:

108 = 2L + 2(14)

108 - 28 = 2L

2L = 80

L = 40.

The answer is length=40ft