432
I know this bc if you do the equation is gonna be 3•8•2•9 then it will be 24•2•9 then it’s gonna be 48•9 to get 432 as your answer
        
                    
             
        
        
        
Yes you have a good example. 
x = number of cookies
2*x = total amount spent on cookies at $2 each
2x-3 = amount you pay after the $3 discount is applied one time for the entire order
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a more numeric example may be this
Lets say you bought 12 cookies, so x = 12
This means it costs 2*x = 2*12 = 24 dollars total if the discount doesnt apply
However, the 3 dollar discount is there, so the grand total is 24-3 = 21 dollars.
 
        
             
        
        
        
Answer:
2/3
Step-by-step explanation:
12/6=2
18/6=3
so
the fraction is 2/3
i think this is what your teachers means, lmk if thats wrong
 
        
             
        
        
        
Answer:
Step-by-step explanation: 
Divide 4 by 3 and you will get 1333333333... as an answer.It is a repeating decimal . Place a line over the second 3  to show that it is a repeating decimal.