What is the formula used to calculate density?

Question 2 options:

Weight = (mass)(gravity)

or

W=mg

Density = volume/mass

or

D=v/m

Density = (volume)(mass)

or

D=vm

Density = mass/volume

or

D=m/v

Density = mass/volume (D = m/v)

The correct formula used to calculate density is:

Density = mass/volume (D = m/v).