Names | Number of glass bottles |
Rebecca | 5 |
Liam | q |
Alexander | 7 + 2 q |
The table shows the number of glass bottles collected by 3 children.
- Find the total number of glass bottles Rebecca, Liam and Alexander collected. Express the answer in terms of q in the simplest form.
- If q = 7, find the average number of glass bottles the 3 children collected.