The exam included 8 A's, 7 B's, and 6 C's.

is that correct?

is that the exact word by word form of your question?

no, it's:

On the biology exam the students grades included 8 As, 7 Bs, and 6 Cs however the teacher was not satisfied with they're performance.

it is incorrect.

On the biology exam the students grades included 8 A's; 7 B's; and 6 C's; however the teacher was not satisfied with they're performance.

Oops -- It's THEIR performance, not they're performance.

THEY'RE is a contraction of they are.

What is a suffixes and prefixes of- navigate , speak ,appear .tolarate.

Is peer editing a verb? That is how I see it. Academic papers looks like the subect, which is plural in the sentence. So, It seems like require would fit better. I have been grieving over this for hours. Can you please help me?

To verify if the number of A's, B's, and C's in the exam is correct, you need to count the total number of each letter.

Counting the number of A's, there are 8 A's in total.

Counting the number of B's, there are 7 B's in total.

Counting the number of C's, there are 6 C's in total.

If you add up the total number of A's, B's, and C's, it should equal the total number of questions in the exam. So, to confirm if the distribution is correct, you would need to know the total number of questions on the exam and compare it to the sum of the counts for A's, B's, and C's.