The n term of a geometric sequence is denoted by tn and the sum of the first n terms is denoted by sn. given t6-t4=5/2 and s5-s3=5.calculate (a)the common ratio. (b)the first term of this geometric sequence

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.