Suppose I am talking about the magnitude of an earthquake:
a. The earthquake is rated 7.
b. The earthquake is rated "7".
c. The earthquake is rated a 7.
d. The earthquake is rated a "7".
Suppose I am talking about the magnitude of an earthquake:
a. The earthquake is rated 7.
b. The earthquake is rated "7".
c. The earthquake is rated a 7.
d. The earthquake is rated a "7".