Names | Number of tin cans |
Lily | 7 |
Luke | a |
Anna | 8 + 5 a |
The table shows the number of tin cans collected by 3 students.
- Find the total number of tin cans Lily, Luke and Anna collected. Express the answer in terms of a in the simplest form.
- If a = 9, find the average number of tin cans the 3 students collected.