23/30 = .7666 = 76.66% = C
A or 80 %
80
67% or D+
That would be 85% (30 divided by 35) which is normally a grade of B. If you only missed 3, you would have an A-.
Your grade would be 64% if you get 16 out of 25 answers correct.
23/30 = .7666 = 76.66% = C
A or 80 %
70% is usually a C-
80
you would have a 94
You score 90%. Your grade will depend on the grade boundaries determined by the testing organisation and any other normalisation.
Sine she is in (American) 10th grade (Japanese High School 1st grade), she would be...15 or 16.
23
The 10th grade - 15/16 years of age
she's 16 so i would assume she would be in the 10th but there are rumors that said she was too old for the grade the she was in so I'm not sure.
If that's 29 out of 30, that's 97%