What is the counterexample for the city of portland is in oregon

Classify the following triangle check all that apply

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares