A transportation planner has set up the following spreadsheet formulation of a transportation problem:

$\backslash$table$[[1875,18x^2+1,12y=1,,,,x=,-,],[,,$to Location,,,,,,$],[$Costs from,,A$,$B$,,,$C$,$Supply,$],[$Location$,$I,$8,,,,8,60,],[$Ex$,$II$,4,,8,,8,60.,-1],[,$III,$2,,8,,8,60,],[,$Demand,$30,,80,,70,-,],[,,1,,,,,$Qundind,$],[,,\frac{?}{\text{b}\text{a}\text{r}}(0),,0,,,$Supplied,$],[,$Solution,$\backslash$table$[[0],[0]],,0,,0,0,],[y=1,2,$a$.,0,,0,,0,0,],[8,$Received,$0,,0,,0,,-],[\sqrt[\phantom{2}]{3},,$Total Cost,,,,,,$],[,,\backslash$table$[[0]],,,($a$),,x,x=-1$