Whos right? And why?

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?

Given right triangle xyz, which correctly describes the locations of the sides in relation to

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)