Bob is going to China, and he wants to bring some DVDs on the airplane. If Bob has a collection of DVDs, in how many ways can he bring of them?
A.3
B.5
C.455
D.2,730
1 answer
C.455
A.3
B.5
C.455
D.2,730
1 answer
2 answers
1 answer
3 answers
2 answers