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Mathematics, 02.01.2022 05:10 genesisramirezozfyj7

In a recent year, there were about 3.7 * 10^9 cell phone users in the United States. In the same year, there were about 1.9 * 10^1 times that many cell phone users world-wide. About how many cell phone users were there world-wide that year? please help

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In a recent year, there were about 3.7 * 10^9 cell phone users in the United States. In the same yea...
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