Last week, Super-Save Supermarket sold 150 pounds of bananas at 1 dollar a pound and this week it sold 120 pounds of bananas at .90 cents per pound. They lowered the price of bananas from $1 to 90 cents per pound.

Are bananas and apples complements or substitutes?

What is the cross elasticity of demand?

Explain your answer to include the following:

Calculate price, income, and cross elasticity of demand

Be sure to reference at least one scholarly source to support your answer.