Names | Number of tin cans |
Sophia | 5 |
Liam | j |
Michael | 2 + 4 j |
The table shows the number of tin cans collected by 3 children.
- Find the total number of tin cans Sophia, Liam and Michael collected. Express the answer in terms of j in the simplest form.
- If j = 4, find the average number of tin cans the 3 children collected.