The answer is A, hope this helps :]
I believe it would be option A 0.85, I do know C & D do equal so either A or B would be the answer of not equaling
Assuming you mean simplified, 66/100=33/50, which can be achieved by dividing both the numerator and denominator by 2.
C probably because a numerical expression uses numbers and does not have any equal signs at the end and it seems like the best answer
The answer for your question is C. I illustrated as the slope of the graph of the equation. This is because the change in y divide by the change in x constant for any two points on the line.
Hope this helps:)