Names | Number of cardboard |
Scarlett | 5 |
Hazel | x |
Samantha | 4 + 3 x |
The table shows the number of cardboard collected by 3 children.
- Find the total number of cardboard Scarlett, Hazel and Samantha collected. Express the answer in terms of x in the simplest form.
- If x = 3, find the average number of cardboard the 3 children collected.