Based on Liggett (1973). A court decision has stated that the enrollment of each high school in Metropolis must be at least 20% black. The numbers of black students and white students in each of the city’s five school districts are listed in the file P06_67.xlsx. The distance (in miles) that a student in each district must travel to each high school is shown in the same file. School board policy requires that all students in a given district must attend the same school. Assuming that each school must have an enrollment of at least 150 students, determine how to minimize the total distance that Metropolis students must travel to high school.