Answer:
31x^2-2 is the answer....
Step-by-step explanation:
 
        
             
        
        
        
Take the common denominator and divide by 3
        
             
        
        
        
16/3 is rational simply because it is a fraction made up of whole numbers.
Irrational numbers cannot be expressed as fractions made up of whole numbers.
        
                    
             
        
        
        
4. The Jar Has More Coins. This is because to go from 10% to 8% the number of coins besides penny's has to increase
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