1. The angles of elevation of a balloon from two points A and B on Level ground are 24°50' and 47°20', respectively. As shown in the figure, points A, B, and C are in the same vertical plane and points A and B are 8.4 mi apart. Approximate the height of the balloon above the ground to the nearest tenth of a mile. (Picture attached)

2. Find the horizontal and vertical components of the vector with magnitude 569 that is inclined 127.5° from the horizontal. Give your answer in the form <a, b>

3. A tree leans at an angle of 8.0° from the vertical, as shown in the figure, from a point 8.0 m from the bottom of the tree, the angle of elevation to the top of the tree is 66°. How Tall is the tree? (I would show the picture but it's cut off)