A plane is at an altitude of feet above ground level. After 30 minutes, the plane rises by an altitude of feet. Which of the following is true about the altitude of the plane after 30 minutes? A.
The altitude of the plane after 30 minutes is feet.
B.
The altitude of the plane after 30 minutes is feet.
C.
The altitude of the plane after 30 minutes is feet.
D.
The altitude of the plane after 30 minutes is feet.