I’m having trouble finding the answers to this problem

Which value would be a solution for x in the inequality 47-4x< 7

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 is the solution to the equation e3x=12? round your answer to the nearest hundredth