a. In Problem 24 the school board decided that because all students in the north and east districts must be bused, then at least 50% of the students who live in the south, west, and central districts must also be bused to another district. Reformulate the linear programming model to reflect this new set of constraints and solve by using the computer.
b. The school board has further decided that the enrollment at all three high schools should be equal. Formulate this additional restriction in the linear programming model and solve by using the computer.