need help on these 3 regarding customer flow and wait time.

Customers arrive at an area at the rate of 111 per hour; There are 4 cashiers, each with its own dedicated line of customers, i.e. there are as many lines as there are cashiers. Each of the cashier has the same service rate of 29 per hour. Arriving customers randomly choose a line, each line having the same chance of being chosen. (1) What is the for any of the lines? I = per hour. (Round to ONE place of decimal) (2) The service rate or p of any of the lines = per hour Customers arrive at a store one every 4 minutes, there is only one cashier who on average takes 5 minutes to check out customers. What is the arrival rate, 1, for the line? per hour (round your answer to TWO places of decimal) What is the service rate, M, at the line? per hour (round your answer to TWO places of decimal) Consider a waiting line model where there is ONLY one line that customers join; there are, however, three cashiers that serve the customers joining the line. The custmers arrive at rate of 52/hour; cashiers have a service rate of 20/hour. Anwer the following: (Round ALL answers to TWO places of decimal; all times are to be converted into minutes) minutes (1) The average "waiting time" for a customer is = minutes (2) The average time needed to check out after joining the line (enter your (3) What is the probability that an arriving customer will NOT have to wait in line? Probability of not waiting response in decimal fraction and NOT percentage)