Answer: 5
Step-by-step explanation:
First one (20 characters) hope this helped
The garden area is maximum when the enclosure is a square.
If a is the length of the side of the square then the length of the building is also a.
The perimeter length is 4a made up of 81+a feet, so 81+a=4a and 3a=81 making a=27 feet.
I got you- The answer is (B. 4) hope this helps, if you need me to explain ask in the comments. Have a good day/night:)