document.write( "Question 664315: Zachary has scores of 91,89,84 on his first three algebra test
\n" ); document.write( "What score does he need on his fourth test in order
\n" ); document.write( "to have a mean score of exactly 90 on his four algebra \n" ); document.write( "

Algebra.Com's Answer #413233 by lynnlo(4176) $\"\"$ $\"About$

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score 96 \n" ); document.write( "

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