Respuesta :

seanpen

Answer:

9.5 ft

Step-by-step explanation:

Use the formula:

P=2(l+w)

Solving for w:

w = [tex]\frac{P}{2}[/tex]﹣l = [tex]\frac{43.8}{2}[/tex]﹣12.4 ≈ 9.5ft