<u>x = 9</u>
Step-by-step explanation:
mean = 5+7+7+x /4 = 7
19+x / 4 = 7
19+x = 28
x = 9
 
        
                    
             
        
        
        
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M(month)*g(amount of games)=x(how many games sold in a month)
        
                    
             
        
        
        
Answer:
16
Step-by-step explanation:
If P=2b +2s then you plug in the variables 
 
        
             
        
        
        
Answer:
C. Quadrant I
Step-by-step explanation:
For a fact, that with radioactive substance it will decay and never stop halving itself. So the line of amount of radioactive substance always halves in a specific time. This type of graph are done in a positive unit grids, never on a negative because that would mean, the radioactive substance rather decaying, its absorbing. So the answer will be Quadrant I. 
Visual likewise graph given below.