Answer: A. The study compares two or more treatments (possibly including "no treatment").
C. The study involves one or more treatment groups and a control group.
Step-by-step explanation:
Answer:
12y + 24
Step-by-step explanation:
12 (y + 2) ---> 12y + 24
I don't know if I'm missing something but uh... it was simple? Tell me if I missed something.