A small RF electronics company runs a web-based sales business model. To support customers trying to order products, the company has a small sales department (one person) that operates three telephone lines. They have a single person taking calls and the other two lines are used to put people on hold. If the sales rep is helping a customer and the other two lines have callers on hold, additional callers cannot get through. It is observed that most people who are unable to get through end up not ordering anything from the website. The average completed sale results in $70 profit for the company. Over the last 6 months, the business averages 6 calls per hour. The sales representative only requires an average of 3 minutes to service the call and complete the sale. Assume nobody on hold hangs up. a)What is the expected number of lost calls per hour