Names | Number of tin cans |
Joseph | 6 |
David | j |
Ella | 3 + 2 j |
The table shows the number of tin cans collected by 3 children.
- Find the total number of tin cans Joseph, David and Ella collected. Express the answer in terms of j in the simplest form.
- If j = 5, find the average number of tin cans the 3 children collected.