I know you posted this in 2017, but here's the answer anyways.
It is 1/2 because every time you multiply the number before, you multiply it by 1/2 to get the next number.
Answer:
ABC =132
Step-by-step explanation:
The two angles form a straight line so they add to 180
ABC + 48 = 180
Subtract 48 from each side
ABC +48-48 = 180-48
ABC =132
Yes, it does. Because these points do respect the "law" that for each "x" there is only one "y" that corresponds to it