Answer please my fourth time asking I’m wasting my points here:(

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

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a