8 If f x 25 and g x 2 62 5 find f g x and determine any domain restrictions Select the correct answer below O f g x O f g x O f g x O f g x 6x8 x x 5 x 1 O f g x 10x 8 x x 5 x 1 O f g x 6 x x 5 x 1 6 x x 5 x 1 where x 0 5 1 where x 0 5 1 10x8 x x 5 x 1 where x 0 5 1 6x 8 x x 5 x 1 where x 0 5 1 where a 0 5 1 where x 0 5 1