Answer:
option 1. 3 juniors and 5 seniors
option 2. 4 juniors and 2 seniors
Step-by-step explanation:
3 + 5 = 8
8 is less than 9 and more than 4
4 + 2 = 6
6 is less than 9 and more than 4
Answer: 14.5
Step-by-step explanation:
Recognize the differnce of 2 perfect squares
a²-b²=(a-b)(a+b)
so