Unlike terms displays terms which are not the same. x+2y would be the answer.
 
        
                    
             
        
        
        
Step-by-step explanation:
3x-5=8x-60
55=5x
x=11
 
        
             
        
        
        
Approximately 68% of a normal distribution lies within one standard deviation of the mean, so this corresponds to students with scores between 

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Answer:
the one on the upper left with the triangular form
Step-by-step explanation:
all the others only represent one of the possibilities