20 dogs are at the shelter.
        
             
        
        
        
To answer this question you will need to calculate the mean for each of the Shifts and then compare those means to the mean of all the data given.  I have attached a picture of the means for each shift and the population mean (all the data).
Shift 1 is the closest to the population mean.  It is 37.4, and the population mean is 35.9.
 
        
        
        
When u add it stays the same but for subtraction u change the sign. 
Example: 2- (-5)=7
        
                    
             
        
        
        
Answer:
85
Step-by-step explanation:
Place the 9 in for X and 9 to the second power is 81. Then add 4...85.
 
        
                    
             
        
        
        
Answer:
x^3-3x=0
+3x
x^3=3x
ok so that means that that number cubed is the same as a number squared so
x = 0 
x = -sqrt(3) 
x = sqrt(3)
im going say the answer is mostly likely 0 but it could be the other ones
Hope This Helps!!!