Pharmaceutical companies prefers experimental studies to conducting surveys and observational studies because companies can manipulate or suggest methods easily to have good outcomes and they are able to directly observe the results. Experimental studies is a type of study in which a procedure and method is intentionally introduced.
Answer:
64
Step-by-step explanation:
Brainliest
Answer:
y=71
x=109
Step-by-step explanation:
12xy i think lol :) hope that helps a bit