6) What is the value of objective function at its best according to your solution? 7) Use the sensitivity report: will the optimal solution point change if the profit contribution coefficient for Aqua Spa increases by $25? Can you estimate the objective function value without resolving the problem in Excel? Show calculations 8) Which constraints are binding? Is there any slack or surplus for each constraint? 9) You are given the following options: (a) the supplier of equipment contacted you that one additional pump is available next production cycle, but he asks to pay $50 for it (b) you got an approval to lower the minimum production level of Hydro-Lux models by 5 units (c) additional 100 feet of tubing is available without any cost Between those three options, which one would be the best to choose? Use the sensitivity report and show calculations