We can solve this problem by using the density-mass-volume relationship:
Density=mass divided by volume
7.9 =25.28 divides by v
V= ( 25.28 divided by 7.9 )
V= 3.20cm^3
Therefore, 25.28 g of iron, with a density of
7.9 g divided by cm^3
occupies a volume of 3.20cm^3