Help me for the Mimic Cahpter 2 Nightmare

What is the perimeter of square abcd? units units 28 units 37 units

True or false? a circle could be circumscribed about the quadrilateral below.

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