Answer:
Idiom
An author writes that a certain style of bike is a dime a dozen to express that it is very common.
Symbolism
A character finds and rescues a pet owl, which represents the character's increasing wisdom.
Imagery
An author uses sensory language to paint a vivid picture of a forest in the reader's mind.
Euphemism
A writer uses the word economical instead of cheap so that no one is offended.
Paradox
An author writes that "The only constant in life is change" to make
readers think about changes in their own lives