Question: joes coffee has one barista that serves customers between 68...

Joe's coffee has one barista that serves customers between 6-8 am. Demand is fairly constant during this period at 30 customers per hour with a ca of 1. Each drink takes 1 minute to prepare on average with a cp of 0.8. What is the maximum number of customers that can arrive per hour and wait (on average) less than 5 minutes in line?