If you know the answer help please!

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

Simplify the expression below -3(10x+4y)+6(6x-2y)

The triangle rst, rs = 65 and st = 60. which equation could be used to find the value of angle s?