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Mathematics 9 Online
OpenStudy (anonymous):

5. Which of the following describes the number below? 0.818181818182 A rational number only B irrational number only C rational number and irrational number D real number and rational number

OpenStudy (anonymous):

This is a rational number because it can be expressed as a ratio of two integers. Also, it's real because it's doesn't have any imaginary component.

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