Tasks 1. In the "R03_ROOM_MIX" worksheet, setup placeholder cells for the Rental Quantities of all room types. These cells will act as the changing cells in the Solver tool. 2. Using the placeholder cells and the revenue values of each room, designate and formulate a cell that holds the total revenue from the rental of all rooms. This cell will act as the target cell (objective function) in the Solver tool. 3. Using the placeholder cells for the rental quantities, designate and formulate cells that contain the total number of staff required for Housekeeping, Maintenance Staffs, Servers, Security, Service and Bell operations. These cells will act as the comparison cells for the staff availability constraints identified in the spreadsheet. 4. Open the solver tool and specify the target cell, changing cells, and constraints along with other parameters for obtaining a linear programming solution to this optimization problem.begin{tabular}{|c|c|} hline Staff Category & NumberofEmployeesAvailable hline Housekeeping & 85 hline Maintenance Staff & 75 hline Servers & 150 hline Security Personnel & 100 hline Service Staffs & 180 hline Bell Boys & 90 hline end{tabular} begin{tabular}{|c|} hline Standard Room hline Delux Room hline Junior Suite hline Corner Suite hline Executive Suite hline end{tabular}.