Haley and nicole stopped at the school bookstore for extra supplies. haley bought 8 pencils and 3 folders and spent $10.39. nicole bought 5 pencils and 4 folders and spent $10.51. how much does a folder cost?

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.