Answer:
i think it would be number 3.
Hope this helps.
Step-by-step explanation:
Answer:
-200 metre is less 450m because - 200 metre is negative.
The answer is no. Because solution (a,b) means x=a, y=b.and we have a-b=5. And (b,a) would mean x=b and y=a but then x-y=b-a=-(a-b)=-5≠5. So the pair (b,a) is not a solution.
