Answer:
Area = 150
Explanation:
Since the sidewalk is mostly rectangular in shape, we shall do the steps below.
Lengths more the school is making the sidewalk longer = 6x (6 times)
Width of the sidewalk = 5 ft
Length of the sidewalk = 30 ft
Area of the sidewalk
= Area = LxB
= Area = 5x30
= Area = 150