問題詳情
2. The local grocery store offers a discount of 20% if a customer pays the 10 USD monthly fee.How much should a customer’s monthly spending in this store be so that paying this fee makessense for her?
(A) At least 10 USD
(B) At least 30 USD
(C) At least 50 USD
(D) At least 60 USD
(A) At least 10 USD
(B) At least 30 USD
(C) At least 50 USD
(D) At least 60 USD
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
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