$3\mathrm{.}2$ Consider the wastewater minimization problem described by Polley

and Polley $(2000).$ The process has four sources and four sinks and

information concerning them can be seen in Tables $3-9$ and $3-10.$

a Find the targets for minimum fresh water and minimum wastewater

discharge after direct$-$recycle.

b Develop a recycle strategy that attains the identified targets.

i need the graphical and algebric solutions by hand writing not typed, please.