Answer:
Top left
Step-by-step explanation:
In order for it to be a function, it has to pass the vertical line test.  So draw a line down the middle of the graphs.  If it passes once, then it is a function, if it passes more than once it is not.
 
        
             
        
        
        
Answer: 
168
Step-by-step explanation: You would do 140/100 = 1.4 then multiply 120 by 1.4 which is 168.
 
        
             
        
        
        
Answer: WY=4.4 mm
Step-by-step explanation:
WY=WX/2
WY=8.8/2
WY=4.4 mm
 
        
                    
             
        
        
        
If x number of tickets and y is the number of people (5000)
75x=5000
5000\75= 66.66 repeat
so x equals 66.66
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