Answer all 3 and ill give a big thumbs up

Farm Fresh Grocery (FFG) provides fresh produce and grocery items in a suburban neighborhood. During the hour between 7 and 8 PM, five customers arrive at the store. The arrival and service times of these five customers are shown below. Please take into account the following assumptions before answering the question below the table. - FFG's queuing system does NOT follow the M/M/1 model. - There is only one cashier who works continuously (no breaks) at the cash register between 7 and 8 PM. - The cashier must complete the service for one customer before proceeding to serve the next customer. Considering the Farm Fresh Grocery situation described above, which of the following options represents the average time a shopper spends in the system? 8 minutes 10 minutes 12 minutes 15 minutes Beans \& Brews is a small drive-thru coffee shop. On average, the shop receives two customers per hour. Suppose Beans \& Brews follows an M/M/1 FIFO model with unlimited arrivals. The shop has a single employee who takes 15 minutes to serve a customer, on average. The employee is compensated at a rate of $10 per hour, and the estimated cost of a customer's waiting time in the queue is valued at $12 per hour. Suppose the first number in each option below represents the average number of customers (without rounding up) in the queue, and the second number represents the overall cost per hour. Select the best option from the choices below. a. 0.25;$16 b. 1;$18 c. 2; \$11.5 d. 2; \$13 e. None of the above choices is correct. At East Coast General Hospital (ECGH), there is an average arrival rate of approximately 17.5 patients per hour. ECGH, on average, serves about 20 patients per hour. It is important to note that ECGH does not follow the conventional M/M/1 model. Upon arrival at the facility, patients can expect to experience one of the following wait times (0,1,4,6, or 8 minutes) before being served. The associated probabilities for these wait times are 0.3,0.2, 0.3,0.1, and 0.1 , respectively. The average wait time for patients in the queue is expected to be: a. 2.3 mins b. 7.2 mins c. 5.6 mins d. 3.9 mins e. 2.8 mins