Names | Number of glass bottles |
Michael | 5 |
Wyatt | j |
Isabella | 7 + 7 j |
The table shows the number of glass bottles collected by 3 pupils.
- Find the total number of glass bottles Michael, Wyatt and Isabella collected. Express the answer in terms of j in the simplest form.
- If j = 6, find the average number of glass bottles the 3 pupils collected.