Assuming the B+ is an 89%, I believe the overall grade would be a 91.5%. All I did is find the average of 94 and 89. To do this, you must add the two percentages to get 183, then divide by the amount of numbers there are, and in this case, there are two.
REMEMBER: I may be misunderstanding the problem. Don't put all your trust in my math ability. I hope this helps!
