Answer
1.14$\times10^{1}\frac{g}{cm^{3}}$
Work Step by Step
Density=$\frac{Mass}{Volume}=\frac{1.20\times10^{4}g}{1.05\times10^{3}cm^{3}} = \frac{1.20\times10^{4}g}{.105\times10^{4}cm^{3}} =\frac{1.20g}{.105cm^{3}} =11.4 g/cm^{3}$.
Or 1.14$\times10^{1} \frac{g}{cm^{3}}$