Q$4.$ The following cross$-$section leveling notes were taken before and after construction of highways for the two stations $13+000$ and $15+000.$ Assume all dimensions are taken in feet, determine the following:

a$)$ The end areas for both stations.

b$)$ Amount of fill and cut by end areas in cubic feet.

$\backslash$table$[[$Station$,$Elevation$],[13+000,,$Left,Center Line,Right$],[$Distance$,30,25,0,25,30],[$Ground$,,,,,],[$Surface$,110,110,110,110,110],[,$Highway,$110,113\mathrm{.}5,114\mathrm{.}5,113\mathrm{.}5,110]]$

$\backslash$table$[[$Station$,$Elevation$],[15+000,,$Left,Center Line,Right$],[$Distance$,40,30,0,30,40],[$Ground$,,,,,],[$Surface$,140,140,140,140,140],[$Highway$,140,130,139,130,140]]$