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Mark has been collecting 11 map pencils each week for several weeks. He then gives 13 pencils to his friend. If p represents the number of weeks that Mark has been collecting pencils, which expression represents the number of pencils Mark has left?

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User Gdbj
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2 Answers

3 votes
11p-13 since p represents the number of weeks
answered
User Anders Lindahl
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3 votes
The expression, 11p-13, models the number of pencils Mark has left

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