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16 March, 06:46

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

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Answers (2)
  1. 16 March, 07:14
    0
    Cost = (9.85/5) * 7

    =13.79
  2. 16 March, 07:45
    0
    The unit rate is $1.97 per lightbulb. Multiply $1.97 by 7 to get 13.79
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