Can someone me with these questions? ty!

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

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.