The town of Busville has three school districts. The numbers of black students and white students in each district are shown in the file P05_42.xlsx. The Supreme Court requires the schools in Busville to be racially balanced. Thus, each school must have exactly 300 students, and each school must have the same number of black students. The distances between districts are shown in the same file. Determine how to minimize the total distance that students must be bussed while still satisfying the Supreme Court’s requirements. Assume that a student who remains in his or her own district does not need to be bussed.