An ATM password at Fred’s Bank is composed of four digits from 0 to 9 , with repeated digits allowable. If no password may begin with the sequence 9,1,1, then how many passwords are possible?
Answer Choices
A. 30
B. 7290
C. 9000
D. 9990
E. 9999
An ATM password at Fred’s Bank is composed of four digits from 0 to 9 , with repeated digits allowable. If no password may begin with the sequence 9,1,1, then how many passwords are possible?
Answer Choices
A. 30
B. 7290
C. 9000
D. 9990
E. 9999