The stem-and-leaf plot shows the ages of a group of friends.
Stem: 2, 3, 4, 5
Leaf: 8, 124, 279, 4
Key: 2.8 = 28 years
24 represents an age of 24 years old
28 represents an age of 28 years old
29 represents an age of 29 year old
34 represents an age of 34 years old
42 represents an age of 42 years old
47 represents an age of 47 years old