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.
Answer:

Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
If you calculated it you would get 20.25 so it is irrational
Answer:
The common ratio is -6
Step-by-step explanation:
The given sequence is

The common ratio can be found using any two consecutive terms of the geometric sequence.

The correct answer is the last choice.
I think you need to add them up and u will get 27