What is number 6? pls help

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

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

Evaluate the expression. (9 + 5)(3 + 2)0