Kindly answer all $6$ questions please. $($shown in the photo attached$)$ They are all connected. Thank you very much.

average angle of swing is $90.$

Using information from the previous question, what would be the dimensions of a

triangular spoil bank if the trench is $2000$ yards long and the cross section of the

trench is as seen below?

A hydraulic shovel with a $2\mathrm{.}3$ yd$.{?}^3$ front dump bucket will load the sand and

gravel from the previous question into haul units for removal. The average angle

of swing is $75$ and job efficiency is the same as in question $1.$ What is the

expected production in LCY$/$hour$?$

Calculate the number of haul units theoretically required in the previous question

if the unit haul capacity is $15LCY$ and truck cycle time excluding loading is $30$

minutes.

What is the total cost of the project based on the hourly charge for operator &

equipment based on the volumes calculated and the production of each piece of

equipment?

a$.$ Excavator and operator $$100$ per hour

b$.$ Loader and operator $$100$ per hour

c$.$ Each Haul unit $$70$ per hour

What is the unit cost per LCY$?$