In how many ways can you arrange 6 CD's from a collection of 50 CD's

There are 50 options for the 1st spot, 49 for the 2nd spot, 48 for the 3rd spot, 47 for the 4th spot, 46 for the 5th spot, and 45 for the 6th spot. To solve, simply multiply these numbers

50*49*48*47*46*45=1.14*10^10

Slot method or permutations

50 choices

6 slots

first slot has 50 options

2nd slot has 49 (1 in first slot)

3rd has 48

4th has 47

5th has 46

6th has 45

to find how many ways that is

50*49*48*47*46*45=11,441,304,000 ways