document.write( "Question 665597: John has grades of 84 and 98 on his first two history tests. What must he score on his third test so that his average is at least 90? \n" ); document.write( "

Algebra.Com's Answer #413944 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "John has grades of 84 and 98 on his first two history tests. 
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document.write( "What  must he score on his third test so that his average is at least 90?
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