Names | Number of plastic bottles |
Amelia | 2 |
Lilian | i |
Henry | 4 + 5 i |
The table shows the number of plastic bottles collected by 3 pupils.
- Find the total number of plastic bottles Amelia, Lilian and Henry collected. Express the answer in terms of i in the simplest form.
- If i = 9, find the average number of plastic bottles the 3 pupils collected.