The possible answers might be 3 (or) -25. There’s no -25 among answers so I suppose it’s B.
If the other one is half of the building is 280 the answer would be 280
Answer:

Step-by-step explanation:

Replace x in the first equation.

Now replace y in any of the equations to find x.

The last option.
(x^6)(y^4)/(xy^2).
Answer:
(1, -5)
Step-by-step explanation:
From the information that is given (1, -5) seems to be the logical answer since we have (1, 5), (-1, 5), and (-1, -5). 1 has been negative twice, 5 has been positive twice so to make things right add a positive +1 and a negative -5
I hope this helps!