Names | Number of tin cans |
William | 8 |
Mason | r |
Isabella | 4 + 5 r |
The table shows the number of tin cans collected by 3 students.
- Find the total number of tin cans William, Mason and Isabella collected. Express the answer in terms of r in the simplest form.
- If r = 5, find the average number of tin cans the 3 students collected.