Sumalee and Kristin are selling cheesecakes for a school fundraiser. Customers can buy New York style cheesecakes and strawberry cheesecakes. Sumalee sold 7 New York style cheesecakes and 4 strawberry cheesecakes for a total of $178. Kristin sold 10 New York style cheesecakes and 12 strawberry cheesecakes for a total of $380. What is the cost each of one New York style cheesecake and one strawberry cheesecake? {word problems}