Answer:
3.8
Step-by-step explanation:
1.8 + 3.6 = 5.4
5.4 - 9.2 = 3.8
 
        
             
        
        
        
Answer:
x = 15
Step-by-step explanation:
the two angles are diagonal so both r the same, so 2x + 18 must be 48.
I forgot the term though so I cant say the exact definition of this type of angle.
 
        
             
        
        
        
4 - 2[-3(-2 - 4) + 2(-5 - 1)] = 4 - 2[-3(-6) + 2(-6)] = 4 - 2[18 - 12] = 4 - 2(6) = 4 - 12 = -8