Answer:253.33...
Step-by-step explanation:
 
        
             
        
        
        
Answer:
A) x=2
Step-by-step explanation:
 
        
             
        
        
        
Answer: The median for set a is greater
Step-by-step explanation:
 
        
             
        
        
        
Answer: 
Step-by-step explanation:
I hope you mean y = x² - 12 and not y = 2x - 12.
You switch the y and x variables:
x = y² - 12
And solve for y:
x + 12 = y²
