Answer:
5 chaperones are needed.
Step-by-step explanation:
400 x 4/5 = 320
320 ÷ 75 = 4.3
personally id say c cuz the one on the right makes it have no trend, and also because if it was a negative trend there should only have been one answer on it really.
Answer:

Step-by-step explanation:
Given

--- First Quadrant
Required
Find tan(A)
The sin of an angle is:

and

By comparison:


So, the Adjacent is:



Collect like terms


Take square roots


The tangent of an angle is:

This gives:

Answer:
The model on the top right.