I need assistance if anyone would be so kind.

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

Acircle has a circumference of 28.36 units what is the diameter of the circle

How do i multiply two digit numbers