The objective cell in unclear

The formulas need to be modified instead of changing values on the spreadsheet

The constraints are unclear

Here is a spreadsheet model for the problem above. What errors were made in the spreadsheet?

The objective cell in unclear

The formulas need to be modified instead of changing values on the spreadsheet

The constraints are unclear

$1$ and $3$ only

$3$ only

$2$ and $3$ only

$1,2,$ and $3$

$2$ only