Hi there!
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I believe your answer is:

Keep in mind that this is APPROXIMATE.
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Here’s why:
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Hope this helps you. I apologize if it’s incorrect.
0^2/0^9 = 0/0, therefore your answer is 1/1 considering that it is a fraction that is 100%, but if you divide 0 by 0, according to Keith’s theory you should have an endless number aka Infinity.
I assume you want the expression to this so it would be x-y-3
Answer:20
Step-by-step explanation: