Throwing a ball

This task is about reading information from a stem-and-leaf graph.
All the students in Room 8 threw a netball as far as they could.
The distance each person threw the ball is shown in the stem-and-leaf graph below.
 
Distance the netball was thrown (metres)
 
stem-leaf-graph-netball-throws.png

Question 1Change answer

a)  What was the shortest distance the ball was thrown?  m

Question 1Change answer

b)  What was the most common distance the ball was thrown?  m

Question 1Change answer

c)  How many students threw the netball more than 21 metres, but less than 29 metres? 

Question 1Change answer

d)  How far was the longest throw?  m