Tyrone walked 8 miles in a walkathon at a speed of 2 miles per hour. how long was he walking? 4 hours 6 hours 10 hours 16 hours

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