C. both a and b would be the best answer
Draw a line from F to (0,0). If you rotate that line 90 degree counterclockwise about the origin, the coordinate of F’ will be (4,1)
I’m not 100% true but i think it’s false, true, true :)
28/7 =4
7•4 is 28 or
7+7+7+7 is also 28