Natsumi went on a business lunch. the pretax bill was $55.60. she decided
to leave a 15% tip. the sales tax rate is 8.25%. what was the final amount of
the bill?

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?