3 divided by 12 in percentages and fractions

What is the missing constant term in the perfect square that starts with x^2 -20x

Which number line represents the solution set for the inequality - x 24?

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