Mariana wants to know how tall the tree she is standing next to is. Mariana is 5ft tall and casts a shadow that is 12 ft. The tree is casting a shadow that is 60 ft. How tall is the tree?

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.