Names | Number of tin cans |
Ellie | 9 |
Grace | j |
Andrew | 9 + 5 j |
The table shows the number of tin cans collected by 3 pupils.
- Find the total number of tin cans Ellie, Grace and Andrew collected. Express the answer in terms of j in the simplest form.
- If j = 7, find the average number of tin cans the 3 pupils collected.