Which algebraic expression represents the phrase “two times the quantity of a number minus 12”?

What is the range of the data below? .8090100

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is

Atriangle has verticals at b(-3,0), c(2,-1), d(-1,2). which transformation would produce an image with verticals b”(-2,1), c”(3,2), d”(0,-1)?