A busy bakery in town experiences a constant flow of customers during peak hours. The front door is observed to admit 3 customers every 2 minutes. For a stable system over a longer period, the number of customers entering should equal the number leaving. a. (6 points) What is the throughput of the bakery? b. (6 points) How long, on average, does a customer spend in the bakery (T, expressed in units of time)