Answer:
The value of the exterior angle is 
Step-by-step explanation:
we know that
The sum of the interior angle plus the exterior angle is equal to  , because are supplementary angles.
, because are supplementary angles.
Let
x-----> the measure of the exterior angle
so

solve for x

 
        
             
        
        
        
Answer:
13
Step-by-step explanation:
b= 3
3x3= 9
9+4= 13
3x3+4=13
Hope this helps
 
        
             
        
        
        
1 is thousands
6 is tens
2 is tenths
5 is hundreds
        
             
        
        
        
Answer:
12x + 4x + 20
4(3x + x + 5)
4(4x+5)
Step-by-step explanation: