Triangle ABC with vertices A(9, 13), B(12, 11), and C(8,7); scale factor: k = 2, center of dilation: (11, 14) (help please)

Need this asap if anyone can i would be very grateful. if you could show workings that would really

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

Select all the expressions that will include a remainder.