83%
83
83% or B
It seems like there might be a misunderstanding in your question, but if you're asking about the average of the grades 83, 86, and 86, you can calculate it by adding the grades together (83 + 86 + 86 = 255) and then dividing by the number of grades (3). This gives you an average grade of 85. If you meant something else, please clarify!
letter grade=C your dumb
83% or B
83 % is a B
15/18 is 83%, which is typically a B-minus on a letter-grade scale.
10 out of 12 gives you 83% which is a B.
That would be about a B-
B-/b
2/83 (2 OVER 83)
83% or B
70.9% or C-
83%
83%
83