What is x and y if z= 1+2i and w=2-i?

this is complex numbers, pls help

Which of the following lines is not parallel to the graph of y = 4x +7?

Ahiking trail is 6 miles long. it has 4 exercise stations, spaced evenly along the trail. what is the distance between each exercise station?

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.