There are 5 red cherries and 10 yellow cherries on a plate. If the average weight of red cherries is 2 oz and the average weight of the yellow cherries is 3 1/2 oz, what is the average weigh of all cherries on the plate?

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