Which expression is equivalent to (256^16)1/4

Use the distributive law to multiply. 3(4x + 5y + 6)

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

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?