document.write( "Question 829621: There are two groups that sponsor river tours that include sightseeing and lunch.One charges a fixed fee of $120 plus $8 per hour, and the other charges a fixed fee of $100 plus $10 per hour.
\n" ); document.write( "a.Write equations for the average cost per hour for each boat ride as a function of the rental time in hours.
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Algebra.Com's Answer #500046 by TimothyLamb(4379)\"\" \"About 
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\n" ); document.write( "tour 1:
\n" ); document.write( "c = 8h + 120
\n" ); document.write( "c/h = (8h + 120)/h
\n" ); document.write( "c/h = 8 + 120/h (units = $/hour)
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\n" ); document.write( "tour 2:
\n" ); document.write( "c = 10h + 100
\n" ); document.write( "c/h = (10h + 100)/h
\n" ); document.write( "c/h = 10 + 100/h (units = $/hour)
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\n" ); document.write( "Solve and graph linear equations:
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\n" ); document.write( "Solve quadratic equations, quadratic formula:
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\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
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