Answer
Please see the work below.
Work Step by Step
(a) We can find the density as
$\rho=\frac{m}{V}$
We plug in the known values to obtain:
$\rho=\frac{8.8}{0.050}$
$\rho=176\frac{Kg}{m^3}$
(b) We can find the volume as
$V=\frac{m}{\rho}$
We plug in the known values to obtain:
$V=\frac{8.8}{1.2}$
$V=7.3m^3$
