How many phone numbers can be made if the rst digit must be 1, the second digit must be a number in the range 3-5, the third digit must be a

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How many phone numbers can be made if the rst digit must be 1, the second digit must be a number in the range 3-5, the third digit must be a number in the range (6-9), and the last seven digits can be any single digit number 0-9?

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Ivy 1 week 2021-09-15T17:45:08+00:00 1 Answer 0

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    2021-09-15T17:46:09+00:00

    1\cdot3\cdot4\cdot10^7=120,000,000

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27:3+15-4x7+3-1=? ( )