document.write( "Question 774293: Ivanna has scored 80,80,and 72 on her previous three tests. What score does she need on her next test so that her average (mean) is 81 ? \n" ); document.write( "
Algebra.Com's Answer #472163 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "After she takes the fourth test, the sum of her test scores must be greater than or equal to 81 times 4.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "Egw to Beta kai to Sigma
\n" ); document.write( "My calculator said it, I believe it, that settles it
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