A rectangular concrete slab measuring $6$ meters in length, $4$ meters in width, and $0\mathrm{.}15$ meters in thickness is being constructed for a sidewalk. If the density of concrete is $2400$ kg$/$m$^3$ and the cost of concrete is $$120$ per cubic meter, calculate the following:

The volume of concrete required for the slab.

The total weight of the concrete needed.

The total cost of the concrete for the slab.