6n + 9 = -3n-21-6 for n
Please help I am very confused

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

Which system of linear inequalities is represented by the graph?

What’s 8y+48 and factor each expression completely