The car dealership kept track of how many cars they sold each week for 6 weeks. What is the average amount of cars sold each week? 75, 88, 34, 88, 64, 101

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth