If a roof has a 5:12 pitch and the roof is 175" horizontally from the ridge to the edge, what is the height of the roof from the lowest point to the highest point? Please show your work!

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?

How do i do this activity, is appreciated

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?