3. During the week, a local car wash station has a happy hour special when clients get the most popular exterior wash for a special fee based upon car size. For compact cars, the charge is $8.00. For full-sized cars, the charge is $10.00. For SUVS, the charge is $12.00. For vans, the charge is $15.00. For trucks, the charge is $20.00. Part A: Explain how you can represent this situation with a piecewise- defined function.