Attach shows the scores of students in an exam

Hence the correct answer = 18% Option A
Answer:
D
Step-by-step explanation:
Binomial means that it will have two terms, so by process of elemination, we are only left with C and D. Degree would be the power, and D is the only one that has a power of 2.
X and y are gonna be the variables you will solve when you do it by substitution. x=3 and y=11
I believe the answer is 60