Consider Rosie and Luna, two consumers looking to purchase a book.. Rosie is only willing to buy a book if the price of the book is less than or equal to $15. Luna is only willing to purchase a book if the price of a book is less than or equal to $5. Each consumer only needs one copy of the book.

Construct a demand schedule which identifies the two consumers’ quantity demanded at prices of $23, $18, $13, $8, and $3.