For the next 7 questions, please refer to the following
information.
Mr. Cherry owns a gas station on a highway in Vermont. In the
afternoon hours, there are, on average, 30 cars per hour passing by
the gas station that would like to refuel. However, because there
are several other gas stations with similar prices on the highway,
potential customers are not willing to wait—if they see that all of
the pumps are occupied, they continue on down the road....