miamidolphinslv3228 miamidolphinslv3228 14-12-2018 Mathematics contestada Ron buys pens from a store. 3 packs of blue pens cost $22.50 and 4 packs of black pens cost $34.00. How much would it cost Ron to buy 2 packs of blue pens and 3 packs of black pens?
