You have not provided the diagram/coordinates for point Q, therefore, I cannot provide an exact answer. However, I can help you with the concept.
When rotating a point 90° counter clock-wise, the following happens: coordinates of the original point: (x,y) coordinates of the image point: (-y,x)
Examples: point (2,5) when rotated 90° counter clock-wise, the coordinates of the image would be (-5,2)
point (1,9) when rotated 90° counter clock-wise, the coordinates of the image would be (-9,1)
point (7,4) when rotated 90° counter clock-wise, the coordinates of the image would be (-4,7)
Therefore, for the given point Q, all you have to do to get the coordinates of the image is apply the transformation: (x,y) .............> are changed into.............> (-y,x)
Addition: 93 can be added six times to determine the total
and division can be used to check your answer since it's the inverse operation of multiplication...take your solution of 558 and divide it by 6 (or 93) to see if 93 times six equals 558