Names | Number of cardboard |
David | 7 |
Risa | g |
Gavin | 5 + 2 g |
The table shows the number of cardboard collected by 3 children.
- Find the total number of cardboard David, Risa and Gavin collected. Express the answer in terms of g in the simplest form.
- If g = 8, find the average number of cardboard the 3 children collected.