Please, select a product to provide an example exemplifying the different impact of quot;fixed costsquot; and quot;variable costsquot; in...

1. Please, select a product to provide an example exemplifying the different impact of "fixed costs" and "variable costs" in "pricing." Explain.

2. Please, provide an example of a product where "price elasticity of demand" and "income elasticity of demand" move in opposite directions.

3. Please, provide an example of easy "price discrimination" and an example of difficult "price discrimination."

Thank you.