Question
A box containing 60 highlighters had a mass of 19.8 kg. A box containing 20 notebooks has a mass of 26.2 kg. The mass of each notebook was four times that of each highlighter. Find the mass of the empty box in grams.
4 m

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A box containing 60 highlighters had a mass of 19.8 kg. A box containing 20 notebooks has a mass of 26.2 kg. The mass of each notebook was four times that of each highlighter. Find the mass of the empty box in grams.