Pls help, I’m quite confused.

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?