Do you think the answer is C.147?
Answer: 
Step-by-step explanation:
Let the smallest angle be x.
Then, the middle angle is x+30.
The largest angle is 2x+30.
Angles in a triangle add to 180 degrees, so:

So, the angles measure 
The greatest common factor is 8
In order from left to right its RRRT
R is repeating and T is terminating
Answer:
x = 
Step-by-step explanation:
x + 4 = 4x + 1
x - 4x = 1 - 4
x = -3
Then, divide both sides by
,
x = 