To find the density of the object, you can use the formula for density:
\[ D = \frac{m}{V} \]
where \( D \) is the density, \( m \) is the mass, and \( V \) is the volume.
Given:
- Mass \( m = 36 \) g
- Volume \( V = 15 \) cm³
Now, plug in the values:
\[ D = \frac{36 , \text{g}}{15 , \text{cm}^3} \]
Calculating this gives:
\[ D = 2.4 , \text{g/cm}^3 \]
So, the density of the object is \( 2.4 , \text{g/cm}^3 \).
The correct answer is 2.4 g/cm³.