I would say similar shapes
Answer:
D
Explanation:
pretty sure its D because none of the other answers would make sense, and this is what I've seen in restaurants.
The first one can be seen either way. For me, I saw a vase first. In all of the pictures, the black drawing is considered the positive space and the white background behind it is considered to be the negative space. If you look at the vase picture again and imagine the background to be the black portion, you see two faces.
Hope this helps! :)
Answer:
By using your voice and/or sound
Explanation: