Multiple Choice
Solve the problem.
-How many different 7-letter codes are there if only the letters A, B, C, D, E, F, G, H, and I can be used and no letter can be used more than once?
A) 4,782,969
B) 36
C) 7
D) 181,440
Correct Answer:
Verified
Correct Answer:
Verified
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