4. The output below is from a linear programming model where the intention was to maximize profit. X1 represented the number of adult ticket sales and X2 represented the number of child ticket sales. Answer the questions below. Optimal Solution Objective Function Value - 300.000 Variable Value Reduced Costs x1 X2 15.000 0.000 0.000 25.000 Constraint Slack/Surplus Dual Prices 1 2 3 4 30.000 0.000 5.000 80.000 0.000 5.000 0.000 0.000 OBJECTIVE COEFFICIENT RANGES Variable Lower Limit Current Value Upper Limit X1 X2 13.333 No Lover Linit 20.000 50.000 No Upper Linit 75.000 RIGHT HAND SIDE RANGES Constraint Lower Limit Current Value Upper Limit 1 2 3 4 30.000 40.000 No Lover Linit 0.000 60.000 60.000 10.000 80.000 No Upper Linit 120.000 15.000 No Upper Linit A. State the objective function B. What is the maximum profit? C. How many adult tickets should be sold to maximize profit? D. How many child tickets should be sold to maximize profit? E. What are the total unused resources for constraint 4? F. If the profit per child ticket was to increase to $65, would the optimal solution change? G. If the second constraint could experience an increase from 60 to 61, what would be the change in the value of the profit