A store is having a sale on chocolate chips and walnuts. For 2 pounds of chocolate chips and 3 pounds of walnuts, the total cost is $14. For 6 pounds of chocolate chips and 5 pounds of walnuts, the total cost is $28. Find the cost for each pound of chocolate chips and each pound of walnuts.

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.