Please help me answer this question:

Question 4. (Total 25 points) The operators of a doggie day care offer doggie pedicures on the premises. One person works the pedicure counter at a time. Doggie pedicures are exponentially distributed with an average of 15 minutes per dog. Dog owners come into the shop requesting a pedicure for their dog at an average of 10 per day ( 8 hour day) (assume Poisson). Determine: a) The Arrival Rate b) The Service Rate c) The average number of customers waiting to be served d) The percentage of time the person working the counter is busy e) The average amount of time a customer is waiting to be served f) The probability that 2 or more customers are waiting in line for service g) The probability that a customer will have to wait more than 6 minutes h) Without doing any calculations, what suggestions do you have for the operators to 'improve the experience' of the customers at the counter (waiting and being served)