A square has a perimeter of 12x + 52 units. Which expression represents the side length of the square in units? x + 4
x + 40
3x + 13
3x + 43

When the cell concentrates potassium within, against the natural tendency of matter, it is performing a.passive diffusion b.facilitated diffusion c.active transport d.pinocytosis

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.

Which describes a grizzly bear’s habitat?