Can someone please help with this math problem

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

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Describe how to translate the graph of y=/x to obtain the graph of y=/x+5