document.write( "Question 490304: Media Services charges $30 for a phone and $20/month for its economy plan. The equation c=20t+30 describes the total cost,c, of operating a media services phone for t months. The total cost for 3 month of service is ? \n" ); document.write( "
Algebra.Com's Answer #333976 by John10(297)![]() ![]() You can put this solution on YOUR website! From the equation, substitute t = 3 into the equation to find the cost. \n" ); document.write( "John10:) \n" ); document.write( " |