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Mathematics, 23.06.2019 14:00 katelyn03anderson

In 1950, the use of coal in the us was 114.6 million tons. the use of coal has decreased by 6.6% per year since then. estimate the amount of coal used in the us in 2010. round to the nearest tenth of a million tons

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In 1950, the use of coal in the us was 114.6 million tons. the use of coal has decreased by 6.6% per...
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