Answer:

Step-by-step explanation:
The mass of this iron cube depends on its side length. Assume that the side length of this cube is x. The volume of a cube is then given by:

We know that density is described as a ratio between mass and volume, meaning:

Rearranging this equation for mass, we obtain:

Substituting the value of volume and density, we get:

Based on the value of x, the mass in grams can be obtained using this equation.