Find the cross-sectional area of a pipe with diameter measuring 3.04 feet. Express the answer with the proper significant figures. Compute the volume of pavement in a road measured to be 22.0 feet...

Find the cross-sectional area of a pipe with diameter measuring 3.04 feet. Express the answer with the proper significant figures.

Compute the volume of pavement in a road measured to be 22.0 feet wide and 1.0 mile long. The measured pavement thickness is 0.650 foot. Express the answer in cubic yards using the proper significant figures.