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The number 20.7 million (20,700,000) can be put into scientific notation by remembering that we want a decimal with the leading (or first digit) between 1 and 10. So we would count how many places to the left we'd move the decimal, in this case seven. Because we're moving it to the left, our exponent will be positive; if we were moving it to the right, our exponent would have to be negative. So in this case, our answer would be 2.07 x 10^7.

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9y ago

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