PLSSS HELP!! Don't just answer the questions for points, please. And don't say you can't see the picture.. if you can't see it don't answer :)

How to determine whether two known pairs of points are on the same line.

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.