Can someone help me Domain and range I would mark the brainlist

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?

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse