Provide me the Excel Solver images and equations Question $1$

Stocking Warehouses: The Nicklaus Razor Blade Company plans to test market a new blade next month. The blades will be stocked in their three warehouses in the following quantities.

$-$ Meanwhile, the carton quantities required by the distributors in the four test markets are as follows.

$-$ The unit costs $($in dollars per carton$)$ of shipping the blades from warehouses to distributors are given in the table below.

$1.$ NRBC wishes to meet the distributor's requirements at the minimum total transportation cost. Find the optimal plan.

$2.$ Show the network diagram corresponding to the solution in $($a$).$ That is$,$ label each of the ares in the solution and verify that the flows are consistent with the given information.