Natchos are sold for $2.50 and hot dogs are sold for $2.00, the cossien stand made $336 and sold 144 items. how many natchos were sold? how many hot dogs were sold

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