I need help asap plz less than 10 minutes

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?

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

Solve the equation by completing the square. x^2+2x=17