It depends. If the question says 'Divide 8 by 2' then you divide 8 by 2 or 8/2 = 4.
Or if it says to 'Multiply 12 by 3' then you multiply 12 by 3 or 12 * 3 = 36.
The systems will intersect at (1,-4), and i think the system has infinite solutions (not sure)
The answer is that its vertical
11/2 divided by $0.99 is $<span>1.51</span>