A site is to be graded such that a level building pad will be installed at an elevation of $110$

feet. Cross$-$sections will be installed at an elevation of $110$ feet. Cross$-$sections of the exiting

ground are provided in the figure below. Section A and Section B are $150$ feet apart. Note

that the vertical scale is different from the horizontal scale; this is often done in engineering

to exaggerate the variation in the vertical direction. How much fill is needed between Section

A and Section $B?$

Repeat problem $1,$ except consider that the building pad is at an elevation of $105$ feet. Assume

that the base widths for the fill area are the same.

I need both questions answered