Two bars and is start at the same point at the same time and travel in opposite directions Jose's average speed is 12 miles per hour more than that of Luis, and after 3 hours the bikers are 90 miles apart. Find the average speed of each biker

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