the answers are correct that are filled in. need help with the rest!

At the International Truck plant, the brake assembly production cell operates eight hours per day with a desired output of 240 units per day. The following table contains information on this brake assembly's task times and precedence relationships: b. What is the required manufacturing cell workstation cycle time to meet the desired output rate? Workstation cycle time seconds per unit c. Balance this cell using the longest task time. (Leave no cells blank - be certain to enter " 0 " wherever required.) d. What is the efficiency of your line balance, ossuming it is running at the cycle time determined in part b? (Round your answer to 1 decimal place.) b. What is the required manufacturing cell workstation cycle time to meet the desired output rate? Workstation cycle time seconds per unit c. Balance this cell using the longest task time. (Leave no cells blank - be certain to enter " 0 " wherever required.) d. What is the efficiency of your line balance, assuming it is running at the cycle time determined in part b? (Round your answer t decimal place.) Efficiency %