2012年5月sat数学一道题a store gas gift certifications in the amount
2012年5月sat数学一道题
a store gas gift certifications in the amount of $5,$10,$15,$20,and$50.Sue gave Bill gift certificates from the store that totaled exactly$235.If she used the minimum number of certificates,how many $10 certificated did she give Bill?
为什么是none
a store gas gift certifications in the amount of $5,$10,$15,$20,and$50.Sue gave Bill gift certificates from the store that totaled exactly$235.If she used the minimum number of certificates,how many $10 certificated did she give Bill?
为什么是none
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