Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Dance | Best dancer(s) | Best score | Worst dancer(s) | Worst score |
| --- | --- | --- | --- | --- |
| Cha Cha | Argo Ader | 34 | Henrik Normann\nPiret Järvis | 14 |
| Waltz (International Standard) | Maarja-Liis Ilus | 36 | Arne Niit | 14 |
| Rumba | Argo Ader | 40 | Arne Niit | 15 |
| Quickstep | Argo Ader\nMaarja-Liis Ilus | 40 | Henrik Normann\nPiret Järvis | 16 |
| Jive | Argo Ader | 32 | Henrik Normann | 24 |
| Tango | Maarja-Liis Ilus | 37 | Erika Salumäe | 26 |
| Paso Doble | Lauri Pedaja | 36 | Evelyn Sepp | 28 |
| Foxtrot | Argo Ader\nEvelyn Sepp | 34 | Henrik Normann | 25 |
| Samba | Maarja-Liis Ilus | 37 | Henrik Normann | 26 |
| Showdance | Argo Adar\nMaarja-Liis Ilus | 40 | - | - |
Question:
how many dancers achieved a best score of at least 40?
Answer:
3