The third row of a stem-and-leaf chart appears as follows 21/ 0 1 3 5 7 9. Assume whole numbers values

The third row of a stem-and-leaf chart appears as follows 21/ 0 1 3 5 7 9. Assume whole numbers values
a. what is the possible range of the values in this row
b. how many data values are in this row
c. list the actual values in this row of data