Names | Number of glass bottles |
Robert | 4 |
Aria | x |
Josiah | 4 + 7 x |
The table shows the number of glass bottles collected by 3 pupils.
- Find the total number of glass bottles Robert, Aria and Josiah collected. Express the answer in terms of x in the simplest form.
- If x = 8, find the average number of glass bottles the 3 pupils collected.