The stem-and-leaf plot shows kilometers walked by participants in a charity benefit walk. Use

it to answer the questions.

Kilometers Walked for Charity

12

3

3 6

7

9

9

13

1

1

4

5

5

14

0

0

2

3

3

8

8

9

15

2

2

2

.

2

3

5 5 7

16

4

5

5

99

17

3

5

Key: 123 means 12.3

a. How many people participated in the walk?

b. How many of the walkers traveled more than 14 kilometers?