Mark and Jen are both jewelry store owners, who buy bracelets and necklaces from the same vendor. Jen bought 40 bracelets and 40 necklaces for $3,040. Mark bought 80 bracelets and 40 necklaces for 3,760. How much each bracelet costs, x, and how much each necklace costs, y. Write your answer as an ordered pair (x, y)