【陳承志】評論
If Tom buys some bread for NT$300 in the bakery on July 5, how much money can he save?如果Tom在七月五號買麵包花了三百元,他可以省多少錢?先看下文章中:Good News: 10% off (From July1 to July 7)所以麵包店七月一號至七號都做10趴折扣(換成數學就是打9折) 300*0.9= 270元那省了多少呢? 就300-270=30元 答案為(D)☑