Find the constant of proportionality for each set of values

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

2.5 milligrams is equivalent to how many grams

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).