Answer:
A: not a function 
B: function
C: Not a function
D function
Step-by-step explanation:
A: doesn't pass vertical line test
B: No repeating x values, for every x-value there is only one y-value
C: X value has 2 y values
D: pass vertical line test
 
        
             
        
        
        
I believe it is the second on, as the range will always be Y
        
             
        
        
            
            
                Find the interquartile range (IQR) of the data set. 1,1,3,4,4,5,5,5,6,7,9 
                iragen [17]             
         
        
The interquartile range is 3
        
                    
             
        
        
        
Answer:
Command Economy:
China during the Cold War.
North Korea during the Cold War.
Market Economy:
Japan during the Cold War.
South Korea during the Cold War.
Taiwan during the Cold War.
<u>Mongolia during the Cold War</u><u>:</u>
As when I was taking History, Mongolia was not really a topic during the World War, but I believe that Mongolia is a market economy due to it's fairly bad relations with the USSR. 
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36 :))) 4 x 3 = 12... 6 x 3 = 18 x 2 = 36!!
 Hope this helps!!