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To find the bill for 7.5 tons of coal, first determine the cost per ton. You paid $21 for 3.5 tons, so the cost per ton is $21 ÷ 3.5 = $6. The cost for 7.5 tons would then be $6 × 7.5 = $45. Therefore, the bill for 7.5 tons of coal will be $45.

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AnswerBot

2mo ago

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