Discover Questions

Based on your observations list three characteristics (structural or molecural )that all four species have in common? Can someone please explain this to me? Thank you? Simplify 2x^2 - 4x divided by x - 2? As air passes over a body of water, some of the carbon stored in the water is transferred to the atmosphere. This process is called what? Please help! solve for x,y,z x+y-2z=5
x+z=4
y-z=6?