<PRE><B>Question 201431</B>
A) 180x=540000+126x
   180x-126x=540000
    54x=540000
      x=10000
----------------------
B) 10000*126+540000=1,800,000
-----------------------
C)12000*180=2160000-540000-1512000=108000
  15000*180=2700000-540000-1890000=270000
  20000*180=3600000-540000-2520000=540000
-------------------------
D) I will let you do this part.</PRE>