Four automobiles have entered Bubba's Repair Shop for various types of work. ranging from a transmission overhaul to a brake job. The experience level of the mechanics is quite varied, and Bubba would like to minimize the time required to complete all of the jobs. He has estimated the time in minutes for each mechanic to complete each job. Billy can complete ob 1 in 400 minutes. job 2 in 90 minutes. job in minutes, and job 4 in 120 minutes. Taylor wi fin- ish job l in 650 minutes. Tob in T20 minutes, job 3. n 90 minutes, and job 4 in 180 minutes. M ark will nish job in 480 minutes job in 20 minutes. job in 80 minutes. and job 4 in 180 minutes Tonn will complete job 1 in 500 minutes, job n 110 minutes, job 3 in do nutes, an mot T 150 minutes. Each mechanic should be assigned to just one of these jobs. What is the minimum total time required to finish the four jobs? Who should be assigned to each job?