posted by Ashley .
Kayla has a 41% grade average. On an exam that is worth 20% of her grade she gets a 100%. What is her grade now?
The 41% she has now is 80% of her final grade, so
she already has 41(.8) or 32.8 %
For her final she get all of the available 20%
final grade = 32.8+20 or 52.8% probably rounded to 53 %