Question 799340
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If she wants an average of 82 on 4 tests, then her total points on all 4 tests must equal 82 times 4.  Add the first three scores and subtract that value from the product of 82 and 4.  The difference is the required last test score.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
<font face="Math1" size="+2">Egw to Beta kai to Sigma</font>
My calculator said it, I believe it, that settles it
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