please help me answer the following in a step by step process. please use 6 decimals while computing and 4 decimals in the final answer

3. A fastfood franchise is considering operating a driveup window food service operation. ssume that customer arrivae faIEow a Poisson probability distribution, with an arrival rate of 24 cars per hour. and that service times follow an exponential probability distribution. Arriving customers place orders at an intercom station at the back of the parking lot and then drive to the service window to pay for and receive the'r orders. Consider a Mochorvtel operation with two service windows and two employees. the employee stationed at each window fills the order and takes the money from customers arriving at the window. The average service time for this alternative is 2 minutes for each channel _ a. What is the probability that no cars are in the system? b. What is the average number of cars waiting for service? c. 1u'tt'hat is the average number of cm in the system? a. What is the average time a on waits for service