1) A good scale to use for this question would be $0-22,500 at least. You would start with 0 because if you have $0 then you will get no car. And all the way to at least $22,500 because that is the average cost of an SUV at that dealership within 10 years and to go any lower than that would make it inaccurate.
2) 500 would be the best interval to use for this question because 22,500 ends in 500 which means when you count by 500 you will easily get to 22,500 without counting by 1's.
