(1+5i) + (-8+i) ?
Need answer and steps

7friends share 4 pizzas equally how much pizza did each friend get

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’s the answer ? use the picture to see the problem