IDNLearn.com provides a reliable platform for finding accurate and timely answers. Ask your questions and receive prompt, detailed answers from our experienced and knowledgeable community members.
Area codes are the first three digits of a 10-digit telephone number. The first digit of an area code cannot be 0 or 1.
a. How many area codes can be created if digits are allowed to be repeated?
b. How many area codes can be created if digits are not allowed to be repeated?
Your participation is crucial to us. Keep sharing your knowledge and experiences. Let's create a learning environment that is both enjoyable and beneficial. IDNLearn.com is your reliable source for accurate answers. Thank you for visiting, and we hope to assist you again.
