document.write( "Question 152298: A student has scores of 67.25, 66.75, and 72.5 on his first three tests. He needs an average of at least 70 to earn a grade of C. What is the minimum score that the student needs on the fourth test to ensure a C? \n" ); document.write( "
Algebra.Com's Answer #111961 by oscargut(2103)\"\" \"About 
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(67.25+66.75+72.5+x)/4>=70
\n" ); document.write( "206.5+x>=280
\n" ); document.write( "x>=73.5
\n" ); document.write( "Answer: 73.5 or more
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