Aroller coaster starts from a deck at an elevation of 20 feet above the ground. on the first hill it climbs 78 feet and then drops 85 feet. on the second hill the coaster climbs 103 feet and then drops 110 feet. how far below or above the deck is the coaster after the completion of the two hills?

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.