Ramon P. answered 10/13/21
Masters of Mathematics with over 10 years teaching experience
Since she got 6 problems wrong,
then 25 -6 = 19 is the number of problems she got right
Now, 6 out of 25 means 6/25 = 0.24 = 24%
and 19 out of 25 means 19/25 = 0.76 = 76%
so she she gets a grade of 76