Convert 23 Liters to pounds

Determine if the number below is written in correct scientific notation, and why or why not. If not, rewrite it correctly

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Solve.
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Change the following number to Scientific Notation.

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The population of Canada is 4 x 10^7, and the population of the world is 9 x 10^9. How many times larger is the population of the world compared to Canada’s population?