V/-8 = 4v 
V= -32v 
V+32v=0 
33v=0 
V=0
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
to calculate mean add all the entries in a week ,then divide by 7(the number of days)
i give you hint 
mean for week 1=(52+65+...   +60)/7
 
        
             
        
        
        
I was just in the same situation, you got this. the answer is A.
        
                    
             
        
        
        
Answer:
Solve by substitution
[y=5/2x-4]
[y= -x+3]
Substitute y = -x +3
[-x+3=5/2x-4]
Isolate x for -x+3=5/2x-4: x=2
For y = -x+3
Substitute x = 2
y= -2+3
Simplify
y=1
The solutions to the system of equations are:
y=1 x=2
 
        
             
        
        
        
The answer for the first one is city c