HELP ME OMG MY GRADE IS SO LOW!1

Which of the following is not a subset of {1,2,3}?

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?