Martin is concerned his old car is about to break down. He received a small raise last month and will use it to buy a new car. He knows that his raise will cover the monthly payment, but he is concerned about the total cost. He realizes the sales tax will be a part of the price, but he doesn't know how much that will cost.

Discussion Requirements for Scenario 2:

Help Martin by researching the sales tax rate in your city. Discuss how this rate is used to determine the sales tax liability. Is this tax progressive, regressive, or proportional? How will Martin know the difference?