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6 December, 18:49

Which set or sets does the number - 9 belong?

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  1. 6 December, 20:37
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    The integers, rational numbers, and real numbers.

    Step-by-step explanation:

    -9 is an integer because it's a negative whole number. It is a rational number because it can be expressed as a ratio between two integers (-9/1, - 18/2, 27/-3 ...), and all rational numbers and integers are real numbers.
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