Help meee please

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?

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