Use the text below to answer the next three questions:On average, $5$ students enter the campus cafeteria every minute. $10\%$ of the students that enter the cafeteria see a long line and leave without entering the line. Note: The line is considered the process, so if a student doesn't enter the line then they are not considered in the process.On average, $18$ students are waiting in line and we can assume that any student that enters the line will not leave.On average, what is the throughput, R$,$ of the line$/$process$?$