Find the optimal tableau for this Max LP the answer the questions below:

Max z$=56$x$1+25$x$2+20$x$3$

$4$x$1+2$x$2+1\mathrm{.}5$x$3<=200$

$2$x$1+1\mathrm{.}5$x$2+0\mathrm{.}5$ x$3<=80$

x$1,$x$2,$x$3>=0$

Tge optimal value z equals