Well if you think about it its 9 because
3 Skirts
3 Blouse
multiply it to get you answer and
3x3=9
An increase in quantity demanded
is the correct answer '
Greatest common factor = 1
To find f(4), you want to substitute x for 4 in the equation. It would look like:
f(4) = 3(4) - 6
Then, just do the math:
f(4) = 12 - 6
f(4) = 6
Hope this helps! :)
