What is the least common denominator of the rational expressions below?

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?

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Using elimination, what is -4x+2y=-12 4x+8y=-24