$11.($YES I Think$)$ Bruce wants to determine whether partnering with another fitness company would reduce the costs of fitness training services. Switch to the Training Providers worksheet, and then run Solver to solve this problem as follows: a$.$ Set the objective as minimizing the value in cell F$10($Total Costs$).$ b$.$ Use the range C$4$:E$4$ as the changing variable cells. Adjust the hours provided by each company using the following constraints: c$.\backslash ($ F $4=600\backslash ),$ the total hours of fitness services provided d$.$ F$10$ is less than or equal to $130,000,$ the maximum fees paid to another fitness company e$.$ C$4$:E$4$ is less than or equal to $220,$ the maximum hours provided by a single fitness company f$.$ C$4$:E$4$ should be an Integer g$.$ Run Solver, keep the solution, and then return to the Solver Parameters dialog box. Save the model to the range B$14$:B$21,$ and then close the Solver Paramete dialog box.