What is the best approximation of the solution to the system to the nearest integer values?

item 1
what is the best approximation of the solution to the system to the nearest integer values?

(−2, 7)

(7, −2)

(6, −2)

(−2, 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