9)

The provided calculations appear to be for finding the area of a shape. The first line `6.3=48:2:24` might represent `6 * 8 = 48`, then `48 / 2 = 24`. The second line `2.8=16:2=8` might represent `2 * 8 = 16`, then `16 / 2 = 8`. The third line `24+3=32(42)` is unclear in its relation to the previous lines or the diagram. Without a clear question or context for these calculations, a definitive answer cannot be provided.