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.
N(3)-8=16
add 8 to both sides
3n=24
Divide each side by three
n=8
78.5/100 as a decimal is just 0.78.5 and as a percent it is 78.5 %
A. Always
Two lines don't always intersect, but the solutions are always where they intersect.
