Well, that's a great question! An 8.5 out of 10 would typically translate to a B grade on most grading scales. It shows that you're doing well and making good progress. Keep up the good work, and remember that every little step forward is something to be proud of.
The letter grade for an 85 is a B.
A b-
B
85% or B
An 85 usually corresponds to a B letter grade on a typical grading scale.
85% or B
An 85% is a B.
Hopefully an F since you can't even spell "letter".
B
50%
80% or B-
70% or C-