Question

what is the volume of an object that has a density of 65g/cm3 and a mass of 130g.

Answer 1

Density ρ is mass m per unit volume v, or

ρ = m / v

Solving for v gives

v = m / ρ

So the given object has a volume of

v = (130 g) / (65 g/cm³) = 2 cm³