Question
The total mass of 7 shortbreads and 8 croissants is 355 g. Each shortbread has a mass nine times as much as a croissant. Find the mass of a croissant.
4 m

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The total mass of 7 shortbreads and 8 croissants is 355 g. Each shortbread has a mass nine times as much as a croissant. Find the mass of a croissant.