[tex]\large\boxed{24\%}[/tex]
In this question, it's asking you to find how much percentage the circle graph is for "A" papers.
To solve this question, we would need to use information from the question.
Important information:
With the information above, we can solve the question.
We know that there are 12 research papers that received an A and there are 50 research papers in total.
We would divide 12 by 50 in order to find the percentage of the papers that got an A.
[tex]12\div50=24[/tex]
When you divide, you should get 24.
This means that 24% of the circle graph is devoted to "A" papers.