I believe this is a rotation through an angle of +90°, anticlockwise, (counterclockwise), with the center of rotation origin(0,0)
To describe rotation we give the center of rotation and the rotation angle in degrees stating whether it is clockwise or counterclockwise.
42-(6x6)+(6x5)
42-36+30
6+30
Answer: 36
THE ANSWER FOR THIS IS 5^1
