Posted by ali on Wednesday, February 8, 2012 at 6:16pm.
for every 20 math books a school buys, they they get 7 aditional books for free. The school needs 297 math books. What is the total number of math books the school must buy in order to receive 297 math books in all?

math  PsyDAG, Thursday, February 9, 2012 at 11:16am
297/27 = 11
11 * 20 = ?
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