Names | Number of cardboard |
Ryan | 2 |
Rael | y |
Samantha | 7 + 5 y |
The table shows the number of cardboard collected by 3 students.
- Find the total number of cardboard Ryan, Rael and Samantha collected. Express the answer in terms of y in the simplest form.
- If y = 10, find the average number of cardboard the 3 students collected.