Karen’s music library contains 10 more playlists than Clarranns music library. The total number of playlists on both music libraries is 80. Find the number of playlists on each person’s music library?

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