MANY POINTS
Which function has a domain of (-∞, ∞) and a range of (-3, ∞)?
A. f(x)=1/x -3
B. f(x)= |x|-3
C. f(x)=e^x-3
D. f(x)= e^x-3
E. f(x)=|x+3|
I know c and d are the same that's just how it is in the test

Which is the completely factored from of xy^3-x^3y

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.

What’s the range cuz i can’t find it?