Problem $05\mathrm{.}022-$ First moment of a composite area

The horizontal $x-$axis is drawn through the centroid $C$ of the area shown, and it divides the area into two component areas $A_1$ and $A_2$ Determine the first moment of each component of area with respect to the $x-$axis if $w=54mm$ and $b=27mm.$ Round the final answer to one decimal place.

The first moment of the area above the $x-$axis is $q,{10}^{3}m{m}^3$

The first moment of the area below the $x-$axis is $q,{10}^{3}m{m}^3.$