Names | Number of tin cans |
Josiah | 9 |
Sophia | j |
Mia | 6 + 6 j |
The table shows the number of tin cans collected by 3 students.
- Find the total number of tin cans Josiah, Sophia and Mia collected. Express the answer in terms of j in the simplest form.
- If j = 6, find the average number of tin cans the 3 students collected.