An oil company produces two types of gasoline, G1 and G2, from two types of crude oil, C1 and C2. G1 is allowed to
contain up to 4% impurities, and G2 is allowed to contain up to 3% impurities. G1 sells for $48 per barrel, whereas G2 sells
for $72 per barrel. Up to 4200 barrels of G1 and up to 4300 barrels of G2 can be sold. The cost per barrel of each crude,
their availability, and the level of impurities in each crude are listed in the le P14_85.xlsx. Before blending the crude oil
into gas, any amount of each crude can be "puried" for a cost of $3.00 per barrel. Purication eliminates half of the
impurities in the crude oil.

a. Determine how to maximize prot.
b. Use SolverTable to determine how an increase in the availability of C1 affects the optimal prot.
c. Use SolverTable to determine how an increase in the availability of C2 affects the optimal prot.
d. Use SolverTable to determine how a change in the protability of G2 changes protability and the types of gas
produced.