Answer:
A) A+ or 5+ (not sure about this)
B) Should be 112.5%
Step-by-step explanation:
So let's say 27 is the amount of points he got. The amount of points without extra credit should be 24 as said in the task. We take 27/24 * 100. That will give the percentage achieved.
As for A I'm not sure. I believe the grade should be the highest which should either be A or 5 (these amount to 100% of task completed) And since these are 100% grades then the 112.5% grade should be A+ or 5+ or whatever unit you are using
