document.write( "Question 154569: The difference between high and low tides along the Maine coast in November is 19 feet on Monday and x feet on Tuesday. Write an expression to show the average rise and fall of the tide for Monday and Tuesday. \n" ); document.write( "
Algebra.Com's Answer #113805 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
(19+x)/2 \n" ); document.write( "
\n" );