I need help I don’t get these

What would the rule be for the reflection of y=-3

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

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