Names | Number of tin cans |
Nora | 9 |
Sofia | s |
Ava | 4 + 9 s |
The table shows the number of tin cans collected by 3 students.
- Find the total number of tin cans Nora, Sofia and Ava collected. Express the answer in terms of s in the simplest form.
- If s = 5, find the average number of tin cans the 3 students collected.