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:
| Game | Date | Opponent | Result | Cowboys points | Opponents | Record |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Sept. 14 | @ Nebraska | Loss | 10.0 | 13.0 | 0-1 |
| 2.0 | Sept. 21 | Utah State | Win | 48.0 | 3.0 | 1-1 |
| 3.0 | Sept. 28 | @ Air Force | Loss | 3.0 | 10.0 | 1-2 |
| 4.0 | Oct. 5 | Arizona State | Win | 27.0 | 13.0 | 2-2 |
| 5.0 | Oct. 12 | @ Brigham Young | Win | 20.0 | 17.0 | 3-2 |
| 6.0 | Oct. 19 | Utah | Win | 20.0 | 9.0 | 4-2 |
| 7.0 | Oct. 26 | New Mexico | Win | 35.0 | 6.0 | 5-2 |
| 8.0 | Nov. 2 | @ Colorado State | Win | 46.0 | 14.0 | 6-2 |
| 9.0 | Nov. 16 | @ Texas El-Paso | Win | 26.0 | 19.0 | 7-2 |
Question:
How many opponents were there when the opponent was Arizona State?
Answer:
13.0