3. A store sells boxes of juice in equal-size packs.
Garth bought 18 boxes, Rico bought 36 boxes,
and Mai bought 45 boxes. What is the greatest
number of boxes in each pack? How many packs
did each person buy if each box contained the
greatest number of boxes possible?

Can someone me with my hwplz(only the circled ones)

Asap! i'm not good math and i'm lost.

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