Answer is 18 due to the theory cause
        
             
        
        
        
question 1 is congruent. 2 is not congruent and 3 is congruent 
 
        
                    
             
        
        
        
Step-by-step explanation:
all work is shown and pictured 
 
        
             
        
        
        
Answer:
144
Step-by-step explanation:
12 times 12
 
        
             
        
        
        
Answer:
Step-by-step explanation:
if the lines are parallel they have the same gradient.
rearrange the equation to make y the subject and then use the m value as gradient. 
-3x=2-y
-3x-2=-y
y=-(-3x-2)
y=3x+2
therefore m=3
slope is 3