Figure G' is the image of figure G by dilation with scale factor 2. Where is the center of this dilation?

Which of the choices shown could be used to prove that aacp=abcp ?

Two airplanes start at the same place and travel in opposite directions, one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

10x − 5y + 14 = 0 whats the answer pls