2. Scheduling Solver AirPlains Airline is a new airline company that maintains a schedule of two daily flights each way between Salt Lake City, Denver, and Chicago. AirPlains Airline must strategically position itself as a low-cost provider in a volatile industry. Therefore, it must work toward finding a minimum cost for assigning flight crews to a given flight schedule while satisfying restrictions dictated by the Federal Aviation Administration. Using Excel Solver, determine all the possible crew rotations based on the flight sched- ule below. You will want to find an approximate expected cost of each combination and then solve the original crew scheduling problem by using these costs. Second, you will want to calculate the crew constraints to determine the decision variables, constraints, and objectives