The piece wise defined function f(x) is graphed below. What is the value of f(5)?

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)