The area of a rug is 4 15/32 square meters. the rug is 2 3/4 meters in length. how wide is the rug? (this is not from the question what im about to add) i need to know whether i add subtract divide or multiply

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