document.write( "Question 1113839: A plumber charges $80 for a service call plus $30 per hour.
\n" ); document.write( "a. Find a linear function that represents the total daily charges C, in dollars, as a function of the time t, in hours, spent at a given location.
\n" ); document.write( "b. If the total charge was $140, how many hours did he work?\r
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Algebra.Com's Answer #728937 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
y, the total chareges
\n" ); document.write( "x, how many hours
\n" ); document.write( "\"y=30x%2B80\"--------the description
\n" ); document.write( "or as question asks,
\n" ); document.write( "\"C=30t%2B80\".
\n" ); document.write( "... you find your other answers from this.
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