Customers arrive at a ticket office window with a single clerk according to Poisson process witha mean interarrival time of 20 seconds. The office has a single clerk whose service times are i. i.d. exponential with a rateD4per minute. The service discipline is FIFO (we have an M/M/1queueing system).(a) Compute the probability that 3 or more customers will arrive within a two-minute window.(b) Customernarrived at 11:20 a. m. What is the probability that customernC2will arrive by11:22 a. m.

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

the answer is d

hope this

i recommend you do what your heart desires. if you're attracted to the same gender, then you're attracted to the same gender. you can't determine what your heart wants.