A candle factory wants to reevaluate its loading containment area to determine how many bays they need to load trucks. Historically, the candle factory loads an average of 5 truckloads per day. Most of the trucks take 2 hours to load, however, some of the trucks can take longer to load. Over the last 6 months it was observed that 90% of the trucks take 2 hours to load, while 10% take 7 hours. Currently, there are only 5 loading bays available. How many more loading bays are needed to meet the queue length? BOX YOUR ANSWER [10pts]