Respuesta :

1. Both hallways are the same length because 96 inches converts into 8 feet.

2. The missing side length is 5 in. because if the perimeter is 13, you add the two known sides (8) and subtract from 13 to get 5
1
Raul and his brother are at the same distance. 96 inches conferts into 8 ft. Every 12 inches = 1 foot

2
First, add 3 + 5 = 8
Then take 13 - 8 = 5 
double check by saying 3 + 5 + 5 = 13