Solve the problem.
-How many 2-letter codes can be formed using the letters A, B, C, D, E, F, G, H, and I. Repeated letters areallowed.
A)81
B)72
C)36
D)512

Name: Solve the problem. -How many 2-letter codes can be formed using the letters A, B, C, D, E, F, G, H, and I. Repeated letters areallowed. A)81 B)72 C)36 D)512
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Question

Quizplus · Accepted Answer

Since repeated letters are allowed, for each of the 2 positions in the code, any of the 9 letters can be chosen, resulting in 9 * 9 = 81 possible codes.

Solve the Problem. -How Many 2-Letter Codes Can Be Formed Using the Letters