Use of an inflation calculator(like one from the Bureau of Labor Statistics at www.bls.gov.oco/home.htm) tells us that becasue of inflation, a car costing $20,000 in the year 2000 cost $25,320 in 2010. What was the average inflation rate per year over those ten years? What if the car cost $30,000 in 2000, how much would it have cost in 2010?