I have a question:
1.Donna buys some $2 stamps and some $5 stamps.If she spends $54 altogether and gets 15 stamps,how many $2 stamps does she buy?(process and construction)
收錄日期: 2021-04-13 13:44:03
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https://hk.answers.yahoo.com/question/index?qid=20071003000051KK01750