Answer:
There are no real roots for this equation. 
Step-by-step explanation:
The only solution is irrational: x-√(4-8x)=0
I have provided a graph to help you with this problem.
Hope this helps! :)
 
  
        
             
        
        
        
Answer:
6
Step-by-step explanation:
You take the most amount studied (18) and the least amount studied (12) and subtract them and that would be the range 
 
        
             
        
        
        
Answer:
mmmm cnt get to it srry
Step-by-step explanation: