please find theanswer for this question

Ramesh Srinivasan decides to install an automatic coffee vending machine outside his coffee shop to reduce the number of people standing in line inside. Srinivasan charges $3.50 per cup. However, it takes too long for people to make change. The service time is a constant 2.00 minutes, and the arrival rate is 20 per hour (Poisson distributed). a) The average wait time in the line = minutes. (Round your response to two decimal places.) b) The average number of customers waiting in the line = customers. (Round your response to three decimal places.) c) Srinivasan raises the price to $5 per cup and takes 30 seconds off the service time. However, because the coffee is now so expensive, the arrival rate drops to 15 per hour. The average wait time in the line = minutes. (Round your response to two decimal places.) The average number of customers waiting in the line = customers. (Round your response to three decimal places.)