Respuesta :

Answer:20

Step-by-step explanation:16+16=32

72-32=40

40/2= 20

Answer:

The length is 20 ft.

Step-by-step explanation:

First you have to multiply 16 x 2 = 32

72 - 32 = 4-0

Then, you divide 40 by 2, which equals 20!

Glad I could help, have a good day :)