What is the median of the data in this stem-and-leaf plot? Key 2|1 means 2|1

A. 21

B. 22

C. 23

D. 24

At least two people have the same birthday in a school of 150 students

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!