Question: Consider the following spreadsheet and Excel Solver sensitivity report. (The profit is in dollars, and the variables x1 and x2 represent the number of units

Consider the following spreadsheet and Excel Solver sensitivity report. (The profit is in dollars, and the variables x1 and x2 represent the number of units of products 1 and 2, respectively.) A B C D E 1 2 Input Information 3 x1 x2 (type) Avail. 4 Constraint 1 2 5 < 42 5 Constraint 2 3 1 < 34 6 Constraint 3 1 1 > 11 7 8 Profit 6 3 9 10 Output Information 11 Variables 12 Profit = Total 13 14 Resources Used Slack/Surplus 15 Constraint 1 16 Constraint 2 17 Constraint 3 18 19 Sensitivity Report Variable Cells Cell Name Final Value Reduced Cost Objective Coefficient Allowable Increase Allowable Decrease $B$11 Variables x1 9.846153846 0 6 3 4.8 $C$11 Variables x2 4.461538462 0 3 12 1 Constraints Cell Name Final Value Shadow Price Constraint R.H. Side Allowable Increase Allowable Decrease $B$15 Constraint 1 Used 42 0.2307692308 42 128 19.333333333 $B$16 Constraint 2 Used 34 1.846153846 34 29 14.333333333 $B$17 Constraint 3 Used 14.30769231 0 11 3.307692308 1E+30 Use the spreadsheet and Excel Solver sensitivity report to answer these questions. (a) What is the cell formula for B12 (the profit contribution of variable x1)? =SUM(B4:B6)*B8 =SUM(B4:B6)*B11 =B8*B11 =B8

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