Question 23613
Let the width be "w".
Then length = 2w-6
Perimeter = 2l + 2w = 96
  l + w = 48
(2w-6) + w = 48
 3w = 54
  w = 18 (this is the width)
l=2w-6= 30 (this is the length)

Cheers,
Stan H.