Choose Yes or No to tell whether the expressions are equivalent. (4^3)^3 and 4^3•4^3 yes or no
(3^4)^4 and 3^8•3^8 yes or no
6^4•3^4 and 18^8 yes or no
4^3•5^3 and 20^3 yes or no

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.