Respuesta :

sqdancefan

Answer:

  300 grams

Step-by-step explanation:

The volume of the glass cube is ...

  V = s³ = (5 cm)³ = 125 cm³

This is 125 times the volume of a 1-cm cube, so the weight is 125 times as much:

  125 × (2 2/5 g) = 300 g

The glass cube weighs 300 grams.

good job