document.write( "Question 450824: There are three exams in a marking period. A student received 75 and 80 on the first two exams. What grade must the student earn on the last exam to get an average of no less than 80% for the marking period. \n" ); document.write( "
Algebra.Com's Answer #310082 by jorel1380(3719)\"\" \"About 
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3x80=240
\n" ); document.write( "75+80+n=240
\n" ); document.write( "n=240-155=85
\n" ); document.write( "The student needs no less than an 85..
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