IDNLearn.com: Your reliable source for finding expert answers. Get comprehensive and trustworthy answers to all your questions from our knowledgeable community members.

A store is having a sale on chocolate chips and walnuts. For 5 pounds of chocolate chips and 3 pounds of walnuts, the total cost is $27. For 7 pounds of chocolate chips and 9 pounds of walnuts, the total cost is $51.

Find the cost for each pound of chocolate chips and each pound of walnuts.