Uring a hoagie sale fundraiser, a ski club sold 42 italian hoagies and 53 roast beef hoagies. what is the ratio of italian hoagies sold to the total number of hoagies sold?

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas 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