Answer:
21
Step-by-step explanation:
27÷3 is 9 and 21÷3 is 7
Answer:
option D
Step-by-step explanation:


(fog)(x) = f(g(x))
Plug in g(x) in f(x)
We plug in 1/x+3 in the place of x in f(x)

To simplify it we take LCD
LCD is (x+3)(x+3)


All the denominators are same so we combine the numerators


Option D is correct
So 3:2
and there are 10 south american butterflies then it would be 10/3 =? and that number *2