document.write( "Question 88095: a submarine descended to a depth of 479 feet and then rose 320 feet.how far below the surface was the submarine and how would you represent this with a signed number...\r
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\n" ); document.write( "\n" ); document.write( "make up a problem using signed numbers.you can use sea level,saving and deposits in a bank account,the stock market,football yardage gained and lost,or anything that you chose.
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Algebra.Com's Answer #64160 by tutor_paul(519)\"\" \"About 
You can put this solution on YOUR website!
The expression for the submarine's activity is:
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