Names | Number of glass bottles |
Salik | 9 |
Sofia | t |
Roshel | 2 + 3 t |
The table shows the number of glass bottles collected by 3 pupils.
- Find the total number of glass bottles Salik, Sofia and Roshel collected. Express the answer in terms of t in the simplest form.
- If t = 7, find the average number of glass bottles the 3 pupils collected.