Answer:
supplementary and straight
Step-by-step explanation:
1. angle D and angle B add up to make a 180 degree angle so they are supplementary.
2. A and C each equal 180 degrees (straight angle= 180 degrees)
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
i might be wrong -
 
        
                    
             
        
        
        
Answer:
sx
Step-by-step explanation:
 
        
             
        
        
        
Answer: 4a16b4c12
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Step-by-step explanation:
-3b - 3b= (-3b)+(-3b)= -6b