What's the dilation of 1/2

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

Can someone me with this? i’m not sure what to put for my equations.