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A notebook costs $81. the notebook costs $9 more than a pen.Find the ratio of the cost of the notebook to the cost of the pen.
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Answer:
2:4 is the ratio. plz mark me brainliest as first answerer
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4
Answer:
price of book:$81
price of pen:$81-$9=$72
ratio: 81/72
9/8
9:8
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