Answer:
x=52
Step-by-step explanation:
90+34
124
180 (sum of all interior angles) - 124
56
x+72+56=180 (straight line)
x+128=180
  -128  -128
x=52
*replace to verify*
52+72= 124
124+56= 180 (straight line)
 
        
             
        
        
        
120 : 8 = 15
and 15 x 20 = 300, so the answer is C
        
             
        
        
        
Answer:
Step-by-step explanation:
proucer surplus
 
        
                    
             
        
        
        
Answer:
D. -8
Step-by-step explanation:
0-4=-4
0-4=-4
-4 + -4 = -8
 
        
                    
             
        
        
        
Answer:
30
Step-by-step explanation:
90 - 60 = 30