Set this problem up in an Excel spreadsheet in a well$-$organized manner. Use formulae that rely on cell references. Clearly label your input parameters, decision variable $($or changing cells$),$ constraints $($both left$-$ and right$-$hand sides$),$ and objective function. Use Solver within Excel to solve the problem. Be sure to clearly state both the maximum flow that is achieved between Communities $1$ and $6$ and the manner in which that flow is achieved. I.e$.,$ state how much traffic must flow between each pair of connected communities $($e$.$g$.,20$ cars flow from community $1$ to community $2)$ in order to achieve the maximum total flow between communities $1$ and $6.$

$($NOTE: While this problem is small enough that you can easily determine the solution without using Excel or Solver, for purposes of this Final Exam you must properly set it up in Excel and solve it using Solver. It is recommended that you use the solution you can readily identify to verify that your Excel model works and that you have set everything up correctly in Solver.$)$