Mr. Tully gave a math test to his class. The highest score was 100 and the lowest score was 72. What is the range of the data?

Do 12/14 and 8/10 have the same value? explain your answer.

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?

Precalculus question, image attached.