Can someone please give me answers (worth 35 points!)

Dilations map circles to circles and ellipses to ellipses with the same. true or false

What is the value of x? enter your answer in the box. photo attached.

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