Choice C, x-2y=4, Subsitute 0 for y and see what x is. Do the same for the y-intercept
The answer is 356.33. I used the formula for circles.
The total number of cookies baked by grandma = 96
Number of grandchildren = 8
As given, all cookies were evenly divided among 8 children, let us assume that everyone except Cindy got equal share. So on being divided equally, it becomes,
cookies per children.
But, as mentioned that Cindy received 'c' cookies less, so let us suppose Cindy received 'x' cookies.
Expression becomes: 
Hence, Cindy received 12-c cookies.
Omg I’m so sorry I’m not giving you your answer but I need to comments so I can post my questions hope you get your answer!
Refer to the attachment for answer