To which sense do these images from “there is no word for goodbye” mainly appeal?
looking through the net of wrinkles into wise black pools of her eyes
a. taste
b. sight
c. sound
d. touch

These images mainly appeal to the sense of B. sight. The author is describing what this woman looks like, writing about her face, and eyes, and wrinkles on her skin. There is no way to imagine this scene without using your sight, as your other senses wouldn't help you much here, which is why the author is appealing to your sense of sight, or what you can see, rather than touch, smell, or taste.

No a triangle cannot be formed because when you add the two smallest number together (which would be 11) the have to be bigger than the number it is "against" ( which would be 12)