please answer a-c

Twenty-four customers arrive every hour (Poisson distributed) at Andy Johnson's food truck when it parks outside the Orlando Courthouse from 11-2 p.m. on weekdays. It takes Andy a mean time of 2 minutes to fill each order (following a negative exponential distribution). The Waiting Line Table is provided below and also we know that Wq=Lq. Click the icon to view the Waiting Line Table. a) What is the average number of customers in the queue? Using the table, the average number of customers in the queue is customers (round your response to four decimal places)