Ok I have 2 questions I am stuck on 1. In the year 2005, the average cost of a car could be modeled by the equation C= -15x2 + 20x - 3 where x is the number of years since 2005. By the year 2010, the average cost had changed, and the equation could be modeled by C= -10x2 + 30x - 2. Find the difference in the average cost equation for cars between 2005 and 2010.

2. Determine the shape and explain what type of distribution the data has.
110, 107, 105, 108, 108, 107, 108, 105, 106, 87, 85, 88, 89, 92, 95, 96, 94, 95, 91, 90, 100, 99, 98, 97, 95, 92, 105