I need to figure it out

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.

Acabbage palmetto has a height of 80 feet.what is the approximate height of the tree in meters