Acertain identification number is a sequence of five digits. (a) how many identification numbers are possible? incorrect: your answer is incorrect. numbers (b) how many of them begin with either 023 or 003? numbers (c) how many identification numbers are possible if no two adjacent digits are the same? (for example, 123-45 is permitted, but 123-34 is not.) numbers

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?