It woulds be x+15 because if you take 2x and subtracted from the 3x then you get x and then you add the 9 and 6 witch you get 15
Answer:
f(f(5)) = 11
Step-by-step explanation:

I hope that is useful for you
SAS because of the side, angle and the reflexive which is a side.
Answer:
The answer in 180000 * 3 ÷ 100 = 5400$