Answer:
30 because if u divided 120 by 4 its 30 and the parents get 1/4 so its 3....... 30/120
Supplementary adjacent angles form a "linear pair." Together, they make a line. The angle supplementary to 85° will be slightly obtuse, just as 85° is slightly acute.
That is a ratio. If you mean the simplified version, then 2:7