The variable would be “X”
Elements of art are stylistic features that are included within an art piece to help the artist communicate. The seven most common elements include line, shape, texture, form, space, colour and value, with the additions of mark making, and materiality.
You would create a darker value if you shaded it, shading it makes it darker.
The skittles because they are small so you can fit more in
The lens changes the focal distance of the eye so that you can focus on images/objects.