document.write( "Question 612567: Jim has grades of 84, 65, and 76 on three math tests. What grade must he obtain on the next test to have an average of exactly 80 for the four tests?\r
\n" ); document.write( "\n" ); document.write( "A. 87 \r
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\n" ); document.write( "\n" ); document.write( "C. 85 \r
\n" ); document.write( "\n" ); document.write( "D. 92
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Algebra.Com's Answer #385570 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "If he is to have an average of 80 on 4 tests, then the sum of all 4 tests must equal 4 times 80.\r
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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