Answer:
M = 6400 grams
Explanation:
As we know that the mass of the box will be given as
\(m = 6.4 kg\)
now we know that
\(1 kg = 1000 g\)
now we have to find the mass of the box in grams so we can use the conversion
\(m = 6.4 kg \times (\frac{1000 g}{1 kg})\)
now we have
\(m = 6.4 \times 1000 g\)
\(m = 6400 g\)
so it is 6400 grams
