Answer:
Part A:80 
Part B:4
Step-by-step explanation:
 
        
             
        
        
        
You need to multiply the two numbers. Or you can use long addition.
        
                    
             
        
        
        
An inequality is <span>the relation between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.”</span>
        
                    
             
        
        
        

 is a monomial (since it is all connected by multiplication) and since it is in the degree of 2, that makes it a quadratic. 
-2 is a constant (since it doesn't have variables) and it is a monomial (since it is all connected by multiplication)
3x-9 is a binomial (since it has two terms, not connected by multiplication) and since it has x in the power of 1, that makes it a linear equation.
Finally, 

 -6x + 9 is a trinomial (since it has 3 terms connected by either addition or subtraction) and since the degree of the polynomial is 2, that makes it a quadratic.