Ikind of need plz and show with both

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?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52