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2 November, 12:25

A wealthy entrepreneur has a fortune worth £2 500 000 000. What power of 10 should this number be to when written in scientific notation? 2 500 000 000 = 2.5 * 10? Enter only the number of the power. For example, if you thought the answer was 10 to the power of 4, you would enter the number 4 in the box.

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  1. 2 November, 12:54
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    9.

    Step-by-step explanation:

    Count the number of digits after the first digit,

    This is 9.
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