Definitely Graph C.
The dots are aligned correctly to the line better than the other graphs.
A=115 and C=50.
because sum of all angles should be 180. so the x would be 32 and. ...
6.875 average.
To calculate the average you add up all of the numbers and divide it by the number of numbers there are, in this case there are 4 numbers. So you add 3.25+6.5+7.25+10.5 and divide that by 4
The shape is a parallelogram because the length of the sides based on the coordinates
