Please help me this problem Q$3.$ Consider the linear programming problem:

$[$ Maximize f$($x$,$ y$)=6$ x$+8$ y; subject to $5$ x$+2$ y $<=40$; $6$ x$+6$ y $<=60$; $2$ x$+4$ y $<=32$; x $>=0,$ y $>=0$; $]$

Obtain the solution: $($a$)$ Graphically. $($b$)$ Using the simplex method. $($c$)$ Using CVX$.$