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Which of the following statements describes the absolute value of a number "a"?

A) The opposite value of a number "a" can be represented by the absolute value of a number "a."
B) Given |a|, "a" is always positive
C) The distance from the number "a" to 0 on a number line can be represented by the absolute value of a number "a."
D) The positive value of a negative number "a" can be represented by the absolute value of a number "a."

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antonsandiego
This is a tricky question as for me. But I think, I'd go with C) The distance from the number "a" to 0 on a number line can be represented by the absolute value of a number "a." As it's sounds better in practical way.

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