Pls help! First correct answer gets Brainliest!!

Answer:
[tex]144 ft^2[/tex]
Step-by-step explanation:
the area of the sidewalk is the area of the whole plot of land minus the area of the flower bed.
The area of the flower bed: length * width = Area; 10 * 8 = 80
The area of the whole plot:
(3 + 10 + 3) * (3 + 8 + 3) = 16 * 14 = 224
224 - 80 = 144 ft squared