Tori bought one share of Macy's stock on Nov 1, 2016 for $33.38. Four years later, she sold it and the closing price for that day was $5.09. How much money did she gain/lose with this stock?

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