Question
One cafe was having a special promotion for dinner. Winnie wanted to invite her students for a meal at the cafe. Each dinner set costs $7.70. What is the minimum amount that Winnie must pay for her 25 students?

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One cafe was having a special promotion for dinner. Winnie wanted to invite her students for a meal at the cafe. Each dinner set costs $7.70. What is the minimum amount that Winnie must pay for her 25 students?