Hi, have only been in the hvac field for about two years now. I have taken the Nate test about a year ago around May 2007 I passed the core but was unable to pass the specialty. I want to retake the heat pump specialty. I have a Nate reference manual(the big thick yellow Nate reference manual") I...

I have a trainee coworker that is preparing to take his EPA test. Anyone know where I can find a sample or practice test? Any help would be appreciated.

for all x>0 and y>0, the radical expression √x 3√x - √y is equivalent to : 3x - √y 9x + y 3x - √xy

American writer Henry David Thoreau wrote that if a law “requires you to be the agent of injustice to another, then I say, break the law.” What idea is Thoreau supporting? This question came up on my G.E.D. practice test and I have no idea what it means... someone help!!

Hello, My name is Jennifer MArtinez and right now I am studying on journalizing transactions, but I really don't know if I am doing them right. I am going to send over a list of transactions and if you could journalize them for me, it would be a great help! I will use the answers to study for a...