Names | Number of plastic bottles |
Jayden | 9 |
Gabriel | d |
Audrey | 8 + 3 d |
The table shows the number of plastic bottles collected by 3 children.
- Find the total number of plastic bottles Jayden, Gabriel and Audrey collected. Express the answer in terms of d in the simplest form.
- If d = 7, find the average number of plastic bottles the 3 children collected.