Squares with sides of 3 inches long are cut from the four corners of a square piece of metal, and the flaps are folded upward to form an open box. If the volume of the box is 75 cubic inches, what was the length of a side of the original piece of metal?

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.