Answer:
Null if the question is not allowing imaginary numbers , but if the question allows imaginary numbers then it would be 12.2474487 i (with calculator)
Step-by-step explanation:
Negative square roots don't exist unless you were taught of imaginary numbers.
The answer for this question is c
To get y you can move the x's to one side, so 120y=500-35x
then you can isolate the y, y= 500/120-35x/120
:)
