Answer:
33 and a half over 7
Step-by-step explanation:
Answer:
i think it is A but i am not sure
Step-by-step explanation:
hope i helped

Let f(x) = y
thus y =

switch the position of y and x in the equation

then solve for y in this case

∴ y=

Thus,
its 30 because if you add the numbers together then you get 90, then you do 180-90 and get 90, divide 90 by 3 and get 30