Beth and Wilbur are selling fruit for a school fundraiser. Customers can buy small boxes of oranges and large boxes of oranges. Beth sold 4 small boxes of oranges and 2 large boxes of oranges for a total of 87$. Wilbur sold 11 small boxes of oranges and 3 large boxes for a total of 150$. Find the cost of one small box of oranges and one large box of oranges.