Answer:
Step-by-step explanation:
You know that anything to the zeroeth power is 1, so the equation is now
-7 * 1, or -7.
 
        
             
        
        
        
Answer:
b
Step-by-step explanation:
 
        
             
        
        
        
Answer:
QR= 16
Step-by-step explanation:
HOPE THIS HELPS 
 
        
             
        
        
        
Sorry but I can't understand your language