A wave on a string is described by

D$($x$,$t$)=(2\mathrm{.}4$cm$)$D$($x$,$t$)=(2\mathrm{.}4$cm$)$

sin$[2$$($x$/(6\mathrm{.}0$m$)+$t$/(0\mathrm{.}16$s$)+1)]$sin$[2$$($x$/(6\mathrm{.}0$m$)+$t$/(0\mathrm{.}16$s$)+1)],$ where xx is in mm and tt is in ss$.$ what is the wave number