Answer:
c. 81
Step-by-step explanation:
rational number is any number that has a perfect square or square root that is equal or greater than zero. And 81 has a square root which is 9 so it is a perfect square and it is greater than zero.
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Answer:
c. 81
Step-by-step explanation:
rational number is any number that has a perfect square or square root that is equal or greater than zero. And 81 has a square root which is 9 so it is a perfect square and it is greater than zero.