You are the buyer for OHaganBooks.com and are considering increasing stocks of romance and horror novels at the new OHaganBooks.com warehouse in Texas. You have offers from several publishers: Duffin House, Higgins Press, McPhearson Imprints, and O'Conell Books. Duffin offers a package of 5 horror novels and 5 romance novels for $50, Higgins offers a package of 5 horror and 10 romance novels for $80, McPhearson offers a package of 10 horror novels and 5 romance novels for $80, and O'Conell offers a package of 10 horror novels and 10 romance novels for $90.
How many packages should you purchase from Duffin House and Higgins Press to obtain at least 8,000 horror novels and 12,000 romance novels at minimum cost?
Duffin House
packages
Higgins Press
packages
What is the minimum cost?