Suppose that you arrive at a single-teller bank to find five other customers in the bank, one being served and the other four waiting in line. you join the end of the line. if the service times are all exponential with rate μ, what is the expected amount of time you will spend in the bank

Asphere has a diameter of 10 in. what is the volume of the sphere?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)