Which expression is equivalent to 5^4(5^-^3)^2?
5^1
5^2
1/5^1
1/5^2

Can someone me out here number 4 plz

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?

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.