points$]$ Sausage Kitchen is a very popular make$-$to$-$order gourmet sausage place in downtown Los Angeles. It is a pay$-$first restaurant in which customers first order and pay before they get seated. At the order$-$taking counter, there is one cashier. In the kitchen there is one employee and one grill that can cook up to $10$ sausages at one time. Each sausage cooks in $15$ minutes, In the spacious eating area, there are $80$ seats.On atypical day, a customer's experience is as follows. First, she waits, on average, $30$ minutes before she places an order. It takes $2$ minutes on average to order. She then walks to the eating area. $($Walking time is negligible.$)$ After she finds a seat, it takes on average $20$ minutes to receive the mea$).$ Finally, if takes $25$ minutes to finish the meal.Assume each customer orders exactly one sausage.Recently Sausage Kitchen found that the customers are complaining about long waits. It is not clear, however, whether customers are complaining about waiting before placing orders or waiting before they eat. Sausage Kitchen is willing to address this issue either by increasing the number of cashiers, increasing the number of grills, or increasing the number of seats.