The Interest Rate, The Time And The Principle Amount
        
                    
             
        
        
        
Answer:
n=13
Step-by-step explanation:
3n-6=33
Add 6 to both sides
3n=39
Divide both sides by 3
n=13
 
        
                    
             
        
        
        
Since there is no number in the thousandths place which would make the number in the hundredths place round up or down, we keep the number the same:
314.16
Hope it helps! Good luck. :)
 
        
             
        
        
        
Is that the exact question? because the last part doesn't really make sense to me
<span />
        
             
        
        
        
Answer:
8. none 
Step-by-step explanation:
20√288
=240√2
=339