Question 823079
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Hi,
If I have a 85 in class and I take my final that is 20% of my grade 
what {{{highlight_green(x)}}} do I need to make on the final exam to still have an 85 class average 
    .80*85 + .20x = 85
              .20x = 85-68
                x = 17/.20
                x = 85