Answer:
The aircraft is gaining altitude at 
Explanation:
Draw a vector diagram. (Right angle triangle speed as the hypotenuse)
Let
x -----> horizontal component of the speed
y ----> vertical component of the speed
s ----> speed in miles per hour
we know that


we have



substitute




therefore
The aircraft is gaining altitude at 
Answer:
A. 24,000 is the correct answer.
Explanation:
Through continents congress meeting or with a ring( just kidding) there has to be a peaceful civilized gather up of people who agree