Please help. I don’t understand this and no I’m not in high school i cant change the grade

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?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Asphere has a diameter of 10 in. what is the volume of the sphere?