Answer:
792
Step-by-step explanation:
The number of ways that k things can be chosen from a collection of n things is given by ...
nCk = n!/(k!(n-k)!)
Here, we want the number of ways 5 items can be chosen from 12. That is ...
12C5 = 12!/(5!·7!) = 12·11·10·9·8/(5·4·3·2·1) = 11·9·8
12C5 = 792
There are 792 ways 5 returns can be chosen from 12.