Un tercio ,,,,.........,,.
Answer:
First Box: Factor by difference of squares
Second Box: It has all perfect squares
Third Box: see my work
Step-by-step explanation:
We have the equation 
Before we do anything, let us bring all of the terms to the left side

Now that we have moved the terms to one side, it is clear that we have a difference of squares.
-Work-

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the answer is
d. rational
Answer:
it goes up (x) goes by 5 and (y) by 7
Step-by-step explanation:
There are 256 cups of water needed. I hope this helped.