112121321231 : 392384741295 123321232121 : 412296915967
321321123123 : 1081673203199
221133221122 : ?

What is the pattern I cant seem to find it?

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°