a) Using Johnson's rule for 2-center scheduling, the sequence is: A firm specializes in desktop publishing for small businesses. They have received the following set of seven jobs that needs to be processed through two work centers at their production facility. The sequence is to first design them in the computer, then printing. Processing time at each of the work centers is shown in the following table: b) For the schedule developed using Johnson's rule, the total length of time taken to complete the seven jobs = hours (enter vour response as a whole number)