Answer:
5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
12r/t
Step-by-step explanation:
 
        
             
        
        
        
(x-9) (x+2)=x²+2x-9x-18=x²-7x-18
        
                    
             
        
        
        
Answer:  There are 108 hammers, and there are 36 screwdrivers. 36×3=108·
Step-by-step explanation: We know that there are more hammers than screwdrivers, so there are 36 screwdrivers but there are 3 times as many hammers so we multiply 36 by 3 to get 108. 
 
        
             
        
        
        
Answer:
Step-by-step explanation: