Hello!
First we have to find the measurement of angle SRU.
180 - 84 = 96
96/2 = 48
Angle SRU = 48 + 90 = 138
All angles in a triangle add the 180
180 - 138 - 30 = 12
The answer is B)12°
Hope this helps!
The answer to this is Hexagon.
We could stop here and have answered the question.
Answer: 
Answer 1. you will need to know population to go hand on hand with how many phones their are, if you don’t you won’t know how many teenagers are alive nor phones
Step-by-step explanation:
9-2x=-1
-2x=-10
x=5
the answer is 5 because if you divide a negative number with negative number it will turn to positive
