Question
A box is 99 g when it is 15 filled with stickers.
The same box is 210 g when it is 12 filled with stickers.
What is the mass of the empty box?
3 m

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A box is 99 g when it is 15 filled with stickers.
The same box is 210 g when it is 12 filled with stickers.
What is the mass of the empty box?