Find the mean and median of these data: 2, 7, 13, 15, 17, 19

Pls Pls answer and HURRY​

What are “like terms”? why can we only add like terms?

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?