Https://us-static.z-dn.net/files/dfb/7f4f2de0e0f43b37af7de042cda55702.jpg
Answer:
3 students got a perfect score.
Step-by-step explanation:
Total number of students in Mrs. Grape's class = 90
Number of students who earned an A = 3/10 of 90
= 
= 27 students
Out of 27 students the number of students who got perfect score
= 
= 3 students
3 students got a perfect score.
C because the relation acts as a function no mater the 2 items
A-F
(A line drawn from a center of the circle to the circumference forms the radius)
Hope this helps
Mark me as brainliest :]