The number is 3 because 3 multiplied by itself (3) is equal to 9.
        
                    
             
        
        
        
The last one HOPE THIS HELPS!!!!
        
             
        
        
        
Answer: D
Step-by-step explanation:
You save the most money with option D. Not in the long run though
 
        
                    
             
        
        
        
B subtract 18 from both sides
        
             
        
        
        
Usually, this means just going with the flow, not actually doing the work, just look ing like you are. hoped this helped