For a particular oxidation process, it is known that the oxidation rate $($dXo$/$dt$)$ is $0\mathrm{.}24\backslash$mu m$/$hr when the oxide thickness is $0\mathrm{.}5\backslash$mu m and it becomes $0\mathrm{.}133\backslash$mu m$/$hr when the oxide thickness is $1\backslash$mu m$.$ Find the linear oxidation constant $($B$/$A$)$ and the parabolic oxidation constant B$.$ Give answers in proper units.