Please help me solve this:
If the selling price of 12 books and 21 pens are 240$, and t...
Mathematics, 28.03.2020 19:09 madie0316
Please help me solve this:
If the selling price of 12 books and 21 pens are 240$, and the selling price of 21 books and 12 pens are 222$. What is the price of one book and one pen?
Answers: 2
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