A piece of metal has a mass of 300g,and a volume of 20cm cubic

Calculate it's density in kg/m^3

1 m^3 = 100cm*100cm*100cm = 10^6 cm^3

0.30 kg /20*10^-6 m^3 = 0.015 * 10^6 kg/m^3 = 1.5 *10^4 kg/m^3