Mathematics, 01.07.2021 14:00 shanaz8199
the campus bookshop sells exercise books and textbooks, where, the total cost of 10 exercise books and 2 textbooks is $1400.00. One also finds the total cost of 3 textbooks and 30 exercise books is $3000. Then determine the price of 1 exercise book?
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the campus bookshop sells exercise books and textbooks, where, the total cost of 10 exercise books a...
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