A cellphone company was surveying the ages of shoppers that were buying new cell phones of Friday and Saturday. According to their data which day is nore likely to have a teenager buy a phone. Friday: 13, 17, 29, 35, 21, 32, 18, 22, 49, 30

Saturday: 16, 18, 16, 32, 36, 25, 28, 12, 13, 15, 43​

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