The serial number on a dollar bill consists of a letter followed by eight digits and then a letter. How many different serial numbers are possible, given the following conditions? a. Letters and digits cannot be repeated. b. Letters and digits can be repeated. c. The letters are nonrepeated consonants and the digits can be repeated.
The serial number on a dollar bill consists of a letter followed by eight digits and then a letter. How many different serial numbers are possible, given the following conditions? a. Letters and digits cannot be repeated. b. Letters and digits can be repeated. c. The letters are nonrepeated consonants and the digits can be repeated.
The serial number on a dollar bill consists of a letter followed by eight digits and then a letter. How many different serial numbers are possible, given the following conditions?
a. Letters and digits cannot be repeated.
b. Letters and digits can be repeated.
c. The letters are nonrepeated consonants and the digits can be repeated.
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