Please help with Question C and E

An assembly plant for the Blood Pressure RX, a portable blood pressure device, has 425 minutes available daily in the plant for the device, and the average demand is 85 units per day. Final assembly requires 6 separate tasks. Information concerning these tasks is given in the following table. Performance Time (minutes) Task Must Follow Task Listed Below Task A B 1 4 1 2 4. A. B C E b) Given the demand, what is the cycle time for this operation? The cycle time for this operation is 5 minutes/unit (enter your response as a whole number). c) What is the theoretical minimum number of workstations? The theoretical minimum number of workstations is stations (enter your response as a whole number and, if your unrounded answer includes decimal values, round your response to the immediate higher whole number). e) What is the overall actual efficiency of the assembly line? The overall actual efficiency of the assembly line above is 100% (enter your response as a whole number)