if she worked three more than twice as many hours as gary worked we can subtract 3 for 48 which leaves 45. she worked twice as many hours as he did and 45 is perfectly devisable by 3 at 15 so she worked 30 hours plus 3 while gary only worked 15 hours. This could be wrong but i dont think it is :)
If corresponding vertices on an image and a preimage are connected with line segments, the line segments are divided equally by the line of reflection. That is, the perpendicular distance from the line of reflection to either of the corresponding vertices is the same. Line is a perpendicular bisector of the connecting line segments.
