All of them
But if u had to pick one I would say addition or subtraction
-√5/2+√5+1
-√5/2+2√5/2+1
√5/2+1
(√5+2)/2
The answer is 9/10 but also 0.9
Answer:
Refer below.
Step-by-step explanation:
The principal will have to increase the number of teachers next year.
We found out that the seventh grade enrollment was 120% of the number of eight graders, which is greater than 110%.
