Miss Wong has 3 pairs of glasses.Each pair costs $725 on average.If the average price of the first and the second pairs is$810,how much does the third pair cost?
Use average~
收錄日期: 2021-05-01 15:35:12
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071205000051KK02422