Consider the reaction X $+$ Y arrow Z Initial Rate of Disappearance of X $($M$/$s$)0\mathrm{.}0530\mathrm{.}1271\mathrm{.}020\mathrm{.}2540\mathrm{.}509[$X$]($M$)0\mathrm{.}100\mathrm{.}200\mathrm{.}400\mathrm{.}200\mathrm{.}40[$Y$]($M$)0\mathrm{.}500\mathrm{.}300\mathrm{.}600\mathrm{.}600\mathrm{.}30$ Determine the initial rate of disappearance of X when the concentration of X is $0\mathrm{.}40$ M and that of Y is $0\mathrm{.}60$ M$.$ Be sure your answer has the correct number of significant digits.