If f(x) = x^4+7, g(x) = x-9, h(x) = sqrt x, then
f*g(x) =
g*f(x) =
h*g(x) =

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3

i believe your answer is a