Answer:
A. point B (-11,7) Point C (11,-7)
Step-by-step explanation:
Answer: -406
Step-by-step explanation:
We have the following expression:

In addition we know:
and
If we substitute this in the expresion, we will have:

40 flights if you're asking how many flights happen in 1 hour.
Answer:
11
Step-by-step explanation:
the image above explains it