Jina received a $70 gift card for a coffee store. she used it in buying some coffee that cost $7.51 per pound. after buying the coffee, she had $47.47 left on her card. how many pounds of coffee did she buy

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.