A. parallelogram
B. I believe it'd be around (11.2,7.5)
C. √(10-5)^2+(9-4)^2 = 21, so yes they bisect
Any point on the x-axis beyond the point (4, 0) is a possible cordinate of R.
Answer:
I'd need to see more, but because they are the same number just positive and negative they'd be on opposite ends of zero
Answer:

Step-by-step explanation:
combine like terms. not trying to be mean, but that all you have to do.