Answers

3番
(y分の30x)分
4番
(a分の2000+b分の2000)分
だと思います!

コハル_*

回答、ありがとうございます‪⸜(*ˊᵕˋ*)⸝‬💕✨
私の答えと同じでしたε-(´∀`;)ホッ

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