Please help!!

Optimal Objective Value $71,250 Variable Value Reduced Cost X1 50 0 X2 0 -60 0 25 140 X4 0 Dual Value Slack/Surplus 0 50 Constraint #1 - Carbon Alloy Availability, lbs #2 - Manufacturing Time, hrs #3 - Combined Production Total #4 - Min # of Aerodyne Max 0 5 15 o 0 -75 Variable X1 Allowable Increase 75 Obj Coefficient 400 300 370 Allowable Decrease 16.30 1E+30 10 X2 X3 60 50 8.33 X4 300 34.09 Constraint #1 - Carbon Alloy Avail, lbs #2 - Manufacturing Time, hrs #3 - Combined Production #4 - Min # of Aerodyne Max RHS Value 1250 2500 200 50 Allowable Increase 25 150 15 21.4 Allowable Decrease 37.5 50 15.30 50 (a) What is the Range of Optimality for the objective coefficient for the Men's Road Ranger? (b) The expected profit for the Men's Road Ranger has increased by $80/bike because of supplier cost decreases. Should you produce any Road Rangers? Yes or No (c) What is the Range of Feasibility for the Available Carbon Alloy Limitation? (d) The available Manufacturing Time has decreased to 1230 hours because of machine repairs. What is your new profit? $ X1 - Aerodyne Max X-Road Ranger Xs-Lady Aerodyne Xu - Featherweight Flyer Unit Profit, $/bike 400 300 375 300 Carbon Alloy, lbs 8 6 6 5 Manufacturing Time, hrs 15 12 14 10 5. Cannon Cycles produces a number of aerodynamic and long distance road bikes for cycling enthusiasts which are sold on-line. For the upcoming production period, four specific models will be produced because of increased demand after the recent Tour de France in August. They are: a Men's Aerodyne Max; a Men's Road Ranger; a Women's Lady Aerodyne; and a Featherweight model for mountain racing. The four models all use a special carbon alloy. The amount of alloy required for each model is summarized in the table below along with the anticipated profit per bike and the manufacturing time required. There are 1250 lbs of carbon alloy and 2500 hours of manufacturing time are available during the next production period