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24 March, 20:25

At the market, 5 light bulbs cost $9.85. How much do 7 light bulbs cost?

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  1. 24 March, 20:32
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    First, find what one lightbulb costs.

    9.85 / 5 = 1.97

    Then multiply the product by 7.

    1.97 * 7 = 13.79

    Seven light bulbs will cost $13.79
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