a new sidewalk will be 6 feet wide 100 feet long and filled to a depth of 9(0.75 ft) inches with concrete. how many cubic yards of concrete are needed

Question

 a new sidewalk will be 6 feet wide 100 feet long and filled to a depth of 9(0.75 ft) inches with concrete. how many cubic yards of concrete are needed?

 

I need help on how to solve this step by step. I am not understanding the process

Answer 1

Volume = length * width * height

= 100 ft * 6 ft * 0.75 ft

= 450 cubic feet