What does compoundes bi-annually mean again?

Triangle xyz has vertices x(1,3), y(0,0)

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

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers