Question 896866
552/6=92
You need an overall average of 92
So far you have 457 points
552-457=95
You need at last 95 points 
(457+x)/6>=92

92-88=4
92-96=-4
93-92=1
91-92=-1
89-92=-3
You are three short of 92 so you need at least 95 to get your A.