Solve the given parts of following problem:
Problem: You spot a plane that is 1.48 km north, 2.3 km east, and at an altitude 4.7 km above your position.
Part A: How far from you is the plane?
Part B: At what angle from due north (in the horizontal plane) are you looking?
Part C: Determine the plane's position vector (from your location) in terms of the unit vectors, letting be toward the east direction, be toward the north direction, and be in vertically upward.
Part D: At what elevation angle (above the horizontal plane of Earth) is the airplane?
Please keep it short and simple and please no copy and paste.