Names | Number of plastic bottles |
John | 3 |
Rachel | j |
Jayden | 7 + 4 j |
The table shows the number of plastic bottles collected by 3 students.
- Find the total number of plastic bottles John, Rachel and Jayden collected. Express the answer in terms of j in the simplest form.
- If j = 4, find the average number of plastic bottles the 3 students collected.