From angle bisector theorem, we know that:

Moreover:

so:

and
432 million, 540 times .20 equals 108, subtract 108 from 540 and you get your answer
They are all perfect squares
(9x+2)(9x+20
(9x+2)^2
Answer: the 3
Step-by-step explanation:
It goes ones, tens, hundreds, thousands, etc. You round the 3 (down, less than 5) because that is in the hundreds place.