please answer the $4$ questions using the table Question $1$

What is the optimal profit if you solve the problem with an integer constraint included?

Question $2$

Solve the problem as an LP $($no integer constraint$).$ How much would you expect profit to increase if you added an hour of electrician time?

Question $3$

Based on the LP problem in question $2,$ how much would the profit of a speaker need to increase before the optimal solution would include production of speakers?

Question $4$

What is the optimal profit if your plant manager says that you are required to produce a minimum of $5$ speakers?

Variable Cells

$\backslash$table$[[$Cell$,$Name,$\backslash$table$[[$Final$],[$Value$]],\backslash$table$[[$Reduced$],[$Cost$]],\backslash$table$[[$Objective$],[$Coefficient$]],\backslash$table$[[$Allowable$],[$Increase$]],\backslash$table$[[$Allowable$],[$Decrease$]]],[$$B$$2,$Units Produced CD Player,$0,-10,50,10,1$E$+30],[$$C$$2,$Units Produced Receiver,$20,0,120,1E+30,20]]$

Constraints

$\backslash$table$[[$Cell$,$Name,$\backslash$table$[[$Final$],[$Value$]],\backslash$table$[[$Shadow$],[$Price$]],\backslash$table$[[$Constraint$],[$R$.$H$.$ Side$]],\backslash$table$[[$Allowable$],[$Increase$]],\backslash$table$[[$Allowable$],[$Decrease$]]],[$$D$$6,$Electrcian Time LHS $($Hours Used$),80,30,80,160,80],[$$D$$7,$Audio Technician Time LHS $($Hours Used$),20,0,60,1E+30,40]]$