Mr. Scozz bought a bike for $20. After a few days, he decided he did not want the bike and sold it for $30. He regretted selling the bike and bought it back for $40. His friend offered to buy the bike so Mr. Scozz sold it for $50. Again, he decided he really needed the […]

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Dear Math Maggie, I went shopping on Black Friday and got some really great deals on Christmas presents. One of the deals was on a flatscreen TV from Target.  The original price of the TV was $799 and it was marked down 30% for Black Friday. Before sales tax, the TV rang up at $639.20. […]