Im not 100% sure which one i wanna say a? identification of evidence examination of questionable documents, forensic chemistry, and dna analysis are all functions of? a) crime files b)criminal law c) crime journals d) crime laboratories

I think that if you are very sure of your answer, A is a good choice. So is B in that case. Before anything is entered into a crime journal it must be accepted as a legal procedure in the practice of criminal law.  Or it must be a discussion on why it cannot be used as evidence.

That only leaves D. Examination of Questionable Documents is another way of saying Forgery. Forensic Chemistry is something only found in the lab, and it takes highly skilled technicians to make use of this tool. DNA is definitely something you would do in a lab. No Lawyer could ever process DNA unless he was first a biochemist before becoming a lawyer. If I had to answer the question, I would pick D, but it you like A better, go with it.

D

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.