The answer would be
2.7 g/cm³
For those who need the complete solution to this, you can refer to my answer.
The formula for density is:
[tex]D = \dfrac{M}{V}[/tex]
Where:
D = Density
M = Mass
V = Volume
The trick to problem solving is to fill in what you know and derive/solve for what you don't know.
Given in the problem:
M = 41 grams (g)
V = 15 cm³
So with that just fill in the formula:
[tex]D = \dfrac{M}{V}[/tex]
[tex]D = \dfrac{41g}{15cm^{3}}[/tex]
[tex]D = 2.733333... g/cm^{3}[/tex]
Round it off and you get 2.7 g/cm³.