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Mathematics, 10.10.2020 17:01 brittneeyy

The fire department has seen an increase in smoke detector sales since 2015. In 2015, they sold 350 detectors which is up from the previous year by 105%. How many did they sell in the previous year?

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The fire department has seen an increase in smoke detector sales since 2015. In 2015, they sold 350...
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