Agroup of 42 people go to an amusement park. the admission fee for adults is $16. the admission fee for children is $12. the group spent $568 to get into the park. how many children were in the group?

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