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Get - A - Read Books is adding a new phone line. The phone comany says that the first 3 digits of the phone number must be 555, but the remaining 4 digits, where each digit is a digit from 0 through 9, can be chosen by Get-A-Great-Read Books. How many phone numbers are possible?

A

`5(9^4)`

B

`5^(3)(9^4)`

C

`5^(3)(10^4)`

D

`10^4`

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Verified by Experts

The correct Answer is:
D
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