HELP! - Chloe must pick a 6-digit personal identification number for her bank card. Each digit must be between 0 and 9. Which expression represents the number of different combinations of 6-digit numbers she can create?
|
A: 6+10
B: 6x10
C: 10x10x10x10x10x10
D: 6x6x6x6x6x6x6x6x6x6