Names | Number of cardboard |
Aaron | 2 |
Salik | n |
Gavin | 4 + 5 n |
The table shows the number of cardboard collected by 3 students.
- Find the total number of cardboard Aaron, Salik and Gavin collected. Express the answer in terms of n in the simplest form.
- If n = 7, find the average number of cardboard the 3 students collected.