7 = -10s -3 is equal to " S =1" ???

what is the correct answer i am correct or not??

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.

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