Here's the best advice I can give any of you. Rarely do they ask a question that is just straight forward, although some questions are. The reason they do that is to test to make sure you understand the process behind the formula, so if you pay real close attention to each question, and possibly write down on your paper the UNIT they are expecting the answer in, then solve for that specific unit, you'll be fine. I really didn't understand it the first THREE times I took the exam and failed, but I realized it during my studies on the 4th, and realized I probably should have passed all three earlier tests. So...PAY ATTENTION to the units! READ the question carefully! And don't panic, it's all right in front of you, and you all can pass this test if you just take your time!
Good luck!!!
oh....and I actually drank a 5-hour energy drink before the test, and another one at lunch time. I wouldn't recommend this if you've never tried these before, but if you are familiar with them.....I recommend it.