Asanji and Lisa are selling flower bulbs for a school fundraiser. Customers can buy bags of windflower bulbs and packages of crocus bulbs.

Asanji and Lisa are selling flower bulbs for a school fundraiser. Customers can buy bags of windflower bulbs and packages of crocus bulbs. Asanji sold 6 bags of windflower bulbs and 1 package of crocus bulbs for a total of $51. Lisa sold 13 bags of windflower bulbs and 5 packages of crocus bulbs for a total of $153. Find the cost each of one bag of windflower bulbs and one package of crocus bulbs.