document.write( "Question 121115: Ashley's telephone service costs $24 per month plus $0.20 for each local call, and long-distance calls are extra. Last month, Ashley's bill was $45.93, and it included $16.33 in long-distance charges. How many local calls did she make? \n" ); document.write( "
Algebra.Com's Answer #88843 by josmiceli(19441)\"\" \"About 
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Let \"b\" = total monthly bill in cents
\n" ); document.write( "c = number of local calls
\n" ); document.write( "l = number of long distance calls
\n" ); document.write( "\"b+=+2400+%2B+20c+%2B+l\"
\n" ); document.write( "\"4593+=+2400+%2B+20c+%2B+1633\"
\n" ); document.write( "\"20c+=+4593+-+2400+-+1633\"
\n" ); document.write( "\"20c+=+560\"
\n" ); document.write( "\"c+=+28\"
\n" ); document.write( "She made 28 local calls
\n" ); document.write( "
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