document.write( "Question 254200: Media Services charges $20 for a phone and $30/month for its econemy plan. the equation C=30t+20 describes the total cost, C, of operating a Media Service phone for t months. The total cost of 3 months of service is $ ? \n" ); document.write( "
Algebra.Com's Answer #186650 by rfer(16322)\"\" \"About 
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C=30*3+20
\n" ); document.write( "C=90+20
\n" ); document.write( "C=$110
\n" ); document.write( "
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