Answer:
The domain is the set of all the values of x, so it would be -3, -5, -6, -9, 0. The range would be every set of y, so it would be 7, -8, -1, -3. Finally, this relation is indeed a function.
Domain: -3, -5, -6, -9, 0
Range: 7, -8, -1, -3
Is it a function? Yes
 
        
             
        
        
        
Answer:
55 maybe? 
Step-by-step explanation:
6*7=42 
42-1=41
Then
7*8=56
56-1=55
 
        
             
        
        
        
Answer:
b. PQ
Step-by-step explanation:
 
        
             
        
        
        
1.5 × 10^(-4). .....this the scientific notation !
        
                    
             
        
        
        
Answer:
-22
Step-by-step explanation: