Penny Chairs has two plants that manufacture and ship chair parts to other manufacturers. Penny Chairs sells and ships to four manufacturers. The cost of shipping one chair from a plant to a customer is given in the following table.

$\backslash$table$[[$Plant$/$Customer$,\backslash$table$[[$Mesquite$],[$Furniture$]],$Tonopah Fashions,$\backslash$table$[[$Sumerlin$],[$Appliance$]],\backslash$table$[[$Charleston$],[$Furnishings$]]],[$Bruderheim$,$$$1\mathrm{.}70,$$$2\mathrm{.}30,$$$2\mathrm{.}50,$$$2\mathrm{.}15$