A family is planning a three-week vacation for which they will
drive across the country. They have a van that gets 18 miles
per gallon, and they have a sedan that gets 32 miles per gallon.
How much more will they pay for gasoline if they take the van?
a. First describe the assumptions you need to make in order
to solve the problem.
b. Solve the problem and show your work.
c. What if the price of gas rose by 40¢ between the planning
of the trip and the actual trip? How much more would the
gas cost for the trip?