1)the marked prices of a television model in shop a and shop b are $5400 and $4800 respectively. shop a offers a 20% discount on the model. if shop b wants to have the same selling price as shop a , what discount shouli it offer.
2)if we sell a wallet at 30% off, it is $72 cheaper than we sell it at 10% off. what is the marked price of the wallet?
請翻譯成句子通順的中文,thx!!!!!!