Question 420085
In order to earn an A in a class, your test scores must average at least 92%. On the first 6 tests, you have an average of 91%.
---
Total points on those 6 tests = 6*91 = 546
--------

What score do you need to get on the last test to earn an A?
---
Let the final test score by "x":
Solve for "x" when (546+x)/7 >= 92
546 + x >= 7*92
---
x >= 98
==============
Cheers,
Stan H.
=============