Quadrilateral ABCD undergoes a series of transformations to become A’’B’’C’’D’’. 
 
The first transformation is a reflection over the y-axis. 
 
The coordinate of C’ would be (-6,3) in this case. 
 
If the image is rotated counter clock wise around the point A then it will result in the final image which is presented in the attached figure. 
 
Hope this helps ..!! 
 
Thank you :)