Evaluate the expression for x = 2 and y=4. 16xº + 2xto power of 2 ×yto the -1

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.

How do i simply this radical expression?

Asingle die is rolled twice. find the probability of rolling a 3 the first time and a 2 the second time