Answer:

Step-by-step explanation:
we know that
To find out the mean change of altitude, divide the total change by the amount of time it takes
so
---> is negative because the airplane is descending
Answer:
Step-by-step explanation:

Answer:
110
Step-by-step explanation:
Angle P and angle N are angles on a straight line. The sum of angles on a straight line is always 180 degrees.
180-70=110