The chart below shows parking rates at John F. Kennedy (JFK) Airport in New York, New York, as of July 8, 2014.

                                       JFK Airport Parking Rates
Short-term Rates Each Half Hour, or Part Thereof ..............Daily Maximum
$4.........................................................................................................$33

Long-term Rates.......................................................Daily Additional Day 0–8 Hours
$18.......................................................................................................$6

(a) Jeff is going out of town for 5 full days. How much will he save by parking in the long-term lot rather than the short-term lot?

(b) What is the cost of parking in the short-term lot for 4 hours?

(c) If Jeff plans to park at the airport for 5 hours, is it less expensive to park in short-term or long-term parking? How much is the difference?