please only answer question B and show steps in excel.

A small trucking company is determining the composition of its next trucking job. The load

master has her choice of seven different types of cargo, which may be loaded in full or in

part. The specifications of the cargo types are shown in the following table.

The goal is to maximize the amount of freight, in terms of dollars, for the trip. The truck can

hold up to $900$ pounds of cargo in a $2,500-$cubic$-$foot space.

a$)$ What cargo should be loaded, and what will be the total freight charged?

b$)$ Now consider that two additional smaller trucks can be added: one that can carry $400$

pounds in a $500-$cubic$-$foot space and another that can carry $800$ pounds in a $1,500-$cubic$-$

foot space. The first additional truck costs $$440$ to hire and the second truck costs $$850$ to

hire. Is it a profitable decision to hire either or both of the additional trucks? Why or why

not? $[$Hint: This will require additional models.$]$PlPl