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18 March, 09:13

the cost of a pen is 3 times the cost of a pencil and cost of a notebooks is four times that of a pen. If the cost of 6 pencils, two pens, and one notebook is $18, what is the cost of 1 pen?

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  1. 18 March, 09:24
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    I think the cost of 1 pen would be $9.
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