IDNLearn.com connects you with a global community of knowledgeable individuals. Ask your questions and receive comprehensive, trustworthy responses from our dedicated team of experts.

Last week, Shane bought 11 books and 4 movies for a total of
$92.
Today, Shane bought 9 books and 9 movies for a total of $144.
Assuming neither item has changed in price, what is the cost
of a book in dollars?