$!$

Required information

An object made of two disk$-$shaped sections, A and $B,$ as shown in the figure, is rotating about an axis through the center of disk A$.$ The masses and the radii of disks A and B$,$ respectively, are $3\mathrm{.}59$ kg and $0\mathrm{.}359$ kg and $18\mathrm{.}68$ cm and $1\mathrm{.}87$ cm $.$

Calculate the moment of inertia of the object.

$kg{m}^2$