Names | Number of plastic bottles |
Sophia | 7 |
Claire | x |
Elizabeth | 8 + 6 x |
The table shows the number of plastic bottles collected by 3 children.
- Find the total number of plastic bottles Sophia, Claire and Elizabeth collected. Express the answer in terms of x in the simplest form.
- If x = 9, find the average number of plastic bottles the 3 children collected.