A $38\mathrm{.}6$ g block of tungsten at $31\mathrm{.}9$C and a $23\mathrm{.}4$ g block of silver at $-127$C are placed together in an insulated container. $($The specific heat of tungsten is $134$ J$/$kg$*$K and the specific heat of silver is $236$ J$/$kg$*$K$.)($a$)$ What is the equilibrium temperature? What entropy changes do $($b$)$ the tungsten, $($c$)$ the silver, and $($d$)$ the tungsten$-$silver undergo in reaching the equilibrium temperature?