Mathematics, 19.12.2019 13:31, 22nathanieltimms

In 1950 use of coal is 114.6 million tons. it decreased by 6.6% per year since then. estimate the amount of coal used in 2010. round to the nearest tenth of a million there a formula? )

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In 1950 use of coal is 114.6 million tons. it decreased by 6.6% per year since then. estimate the am...