F(x) = x + 2 g(x) = x -4
x
(f g)(x) =
2x - 2
x² – 8
x2 - 2x -8
x2 + 2x - 8

Use photo math it helps a lot :) the answer is B by the way

I’d have to say no because without oxygen in the water the fish would all be dead. so if you want to fish for dead fish, pick the ponds with the lowest oxygen concentrations.