Answer:
4 students
Step-by-step explanation:
The total number of students is given by:

Where N is the total number of students, A is the number of students that have taken Math 2A, B is the number of students that have taken Math 2B, and C is the number of students that have taken Math 2C:

4 students in Group A have taken all three classes.
*The number of students that have taken two classes has be subtracted so those students do not get counted twice
So the first two line segments added together equals the full line segment. So, 8y + 5 + 7y = 13y + 25
15y + 5 = 13y + 25
2y = 20
y = 10
Answer:
0.28
Step-by-step explanation:
Answer:
Angle AFB
Step-by-step explanation:
They don't have to be supplementary but these are, as long as they are immediately next to each other or "adjacent."
Answer:
I think the answer you have is correct
Step-by-step explanation: