英语翻译
Inasalethepriceofajacketoriginallycosting17000isreducedby400.Anyitemnotsoldbythelastdayofthesaleisreducedbyafurther50%.Ifthejacketissoldonthelastdayofthesale
a.calculatethepriceitisfinallysoldfor
b.CALCULATETHEOVERALLPERCENTAGEREDUCTIONINPRICE