Please answer problem $1$ and $2$

Problem $1.$ Compare the average$-$end$-$area method and prismoidal formula for computing the volume $(y{d}^3)$ of concrete contained in the figure below.

Problem $2.$ For the data listed below, tabulate cut, fill and cumulative volumes in cubic yards between stations $10+00$ and $20+00.$ Include an expansion factor of $1\mathrm{.}30$ for fill material.