You can
put this solution on YOUR website!None of them lie within the system of restrictions:
(1, 2) violates both 1 < x and 2 < y
(0, 0) violates both 1 < x and 2 < y
(5, 5) violates both y < 5 and x + y < 10
(1, 5) violates both 1 < x and y < 5
Now if you actually meant less than or equal, as in

, in all cases, that would be a totally different story. If you need to express 'less than or equal' or 'greater than or equal' in plain text, just use <= or >=