Cube M has an edge length of 8 centimeters. The edge length is
doubled to create Cube N. How many
times greater is the surface area of Cube
N than the surface area of Cube M?

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