Answer:
[tex]Density = 2.7 \ g/cm^3[/tex]
Explanation:
The equation for density is:
[tex]Density = \frac{mass}{volume}[/tex]
We can plug the given values into the equation:
[tex]Density = \frac{81\ g}{30.0\ cm^2}[/tex]
[tex]Density = 2.7 \ g/cm^3[/tex]
