Hello please help me, what is 1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1 +1?

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?

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Complete the input-output table for the linear function y = 3x. complete the input-output table for the linear function y = 3x. a = b = c =