document.write( "Question 355699: How many 7 digit phone numbers are avaliable if the first three digitd sre either 345, 286 or 329 \n" ); document.write( "
Algebra.Com's Answer #253974 by Fombitz(32388)\"\" \"About 
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From 345-0000 to 345-9999, there are 10,000 numbers.
\n" ); document.write( "Since there are three first number pairs, that makes a total of 30,000 total numbers.
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