Select the function that represents an arithmetic sequence. a(n) = p(1 + i)n – 1, where n is a positive integer b. a(n) = p + (n – 1)i • p, where n is any real number c. a(n) = p(1 + i)n – 1, where n is any real number d. a(n) = p + (n – 1)i • p, where n is a positive integer

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.