Mathematics, 10.04.2020 00:41, blueheeter1461
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?
Answers: 2
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The cost of a pen is 3 times the cost of a pencil and cost of a notebooks is four times that of a pe...
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