Andre and Elena are each saving money Andre starts with $100 in his savings account and adds five dollars per week Elena starts with $10 in her savings account and add 20 each week after four weeks who has more money in her savings account

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?

What is the rotational symmetry of a wheel

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?