MATHEMATICS

Hi umm /science and math/.... anyway. i have a problem, i dropped out of school in 10th grade, long story short, i forget almost everything about my entire school career. now im relearning it. specifically math, i never got more than a -c in Pre-algebra, now in less than two days i have re-taught and learned things i have never learned before by teaching myself... im still sketchy when it comes to fractions, decimals, and ratios. because back in 4th grade my teachers and ALL of the substitutes were very inconsistent, and it was a hard environment to learn in, also it was catholic, so thats two bad things. there was no room for mistakes, and it was very stressful for a young kid. to this day i have trouble doing  the things i "learned" back then. but now i am teaching my self algebra and i am having a less than satisfactory time trying to recognize different types of equations, and trying to figure out which formulas im supposed to use and how im supposed to complete problems. i know how to do them sure, but i dont want to use my notes to help recognize them, because im taking a test. can i have some help from a smart person please?

here is a link of the quiz im taking, if you'd like you can look it over and see exactly what im talking about.

http://www.mathsisfun.com/worksheets/print.php?w=72517&next=edit