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Mathematics, 22.08.2019 16:40 desiree98

Peter spent 40% of his money on books and 50% of his remaining money on toys. he had $21 left. how much money did peter have at first? (note: this may be really simple for some people, however mathematics for me is not a strong subject and i do need a lot of , .

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Peter spent 40% of his money on books and 50% of his remaining money on toys. he had $21 left. how m...
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