C, D, E, and G are FOUR points.
Answer:
16 questions right = 80%
So Peter missed 4 questions.
Hope this helps.
:-)
The answer is 9.5 ( rounded, answer is 9.486833)
You are given a table in which each row represents the coordinates of points. For example, in the first line, we have x=-7 and y=5. Work through the four given equations, one at a time, subbing -7 for x and 5 for y; is the equation still true? If yes, then you have found the correct answer. B is the exception; I'd suggest you check out equations A, C and D first, before focusing on B.
Example: D: (5)-5 = 2((-7) + 7) leads to 0 = 0. Is that true? If so, D is likely the correct answer.