A new sidewalk will be 6 feet wide, 100 feet long, and filled in a debt of 9 inches with concrete. How many cubic yards of concrete are needed?

Respuesta :

Answer: 16.67 yd^3 cubic yards
21,600 yards I think, 6ftx100ft=600ft x 12 to get to inches, 7,200x9 gives us 64800 then / by 3 to get into yards which is 21600, have a great day

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