Nearly all classes at SHCC feature a variation of the "90% Rule".
If a student submits an assignment which earns less than 90%, he is allowed to revise the assignment.
The top grade he can earn on the revision (usually called a "redo") is 90%.
That is a B+ on Mr. Brunner's grading scale.
He believes that is fair to the student who might have had to spend much time reworking the assignment.
Each instructor has set a grading scale and a variation of the "90% Rule".
Consult each instructor for details.