PLEASE SOLVE 4 and 5 and 6 QUESTONS.. PLEASE HELP ME!!

->X=0

->Show three decimal places in calculations.

4. The assembly line is available for production for [10 hours - (45 minutes for lunch+2*10 minutes for breaks + (x+40) minutes for cleaning)]. The daily demand is 500 units. For the information given in the table. a. Draw the precedence diagram. b. Calculate the cycle time and theoretical minimum number of workstations. C. Assign tasks to the workstations. d. What is the efficiency of the assembly line? What is the total idle time? Task Task Task 1 2 3 4 Time Immediate (seconds) Predecessor(s) 19 12 1 12 14 3 20 2-4 20 5 14 22 7 9 10 11 12 13 Time Immediate (seconds) Predecessor(s) 13 6-8 15 9 30 10 12 11 26 11 13 12-13 13 14 15 14 17 18 19 20 21 22 23 24 25 Time Immediate (seconds) Predecessor(s) 9 15-16 21 16 18 12 19 18 17 19 20-21 21 21 8 22-23-24 14 6 7 8 15 16 5. The short run costs of 4 consecutive capacity increments are given by the expressions below (q represents the production level). Conduct a scale analysis for the long run and specify the results that you obtained 1. 12842004+39 II. 300+100q+29 TIL 900+32 IV. 675+125q+q 6. For a hypothetical supply chain of a hospital (including 4 actors at least), build a Kanban system that can generate benefits during the current Covid19 Pandemic period. Emphasize these potential benefits for the given conditions of Pandemic (answer should not exceed max. I page)