Astore manager set up a cardboard display to advertise a new brand of perfume. the display is a square pyramid whose base is 18 inches on each side. the height of each triangular face of the pyramid is 12 inches. how much card word was used to make the display? a. 516 b.756 c.612 d.1080 d is not the answer i tried the teacher marked it wrong

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