Based on the following sensitivity report, how much should the firm be willing to pay for $5z$ in

Variable Cells

$\backslash$table$[[,$Name,$\backslash$table$[[$Final$],[$Value$]],\backslash$table$[[$Reduced$],[$Cost$]],\backslash$table$[[$Objective$],[$Coefficient$]],\backslash$table$[[$Allowable$],[$Increase$]],\backslash$table$[[$Allowable$],[$Decrease$]]],[$$$B$$$2,$Product$\_1,0,-2,\frac{5}{7},2,1E+30$