September 1, 2010 + 180 days = February 28, 2011.
As far as I know there has never been a 180. For 09, Yamaha replaced the 80 Raptor with replaced a 90 and there is a 250, 350 and a 700 Raptor. See link below.
8 x 180 = 1,440
It is: 180*180 = 32,400
162= 180 - (10%/100% * 180)= 180 - (1/10 * 180)= 180 - (0.1 * 180)= 180 - 18= 162
60 of 180 = 60 x 180 = 10,80060% of 180 = 180 x 0.6 = 10860% off 180 = 180 x 0.4 = 7260 off 180 = 180 - 60 = 120
15% off of 180 = 15315% off of 180= 15% discount applied to 180= 180 - (15% * 180)= 180 - (0.15 * 180)= 180 - 27= 153
180 x 180% = 324
Prices as of 09/2012 for bills in average condition: 1907: $75 to $180 1922: $85 to $225 1928: $35 to $100
180 add 180 = 360
LCM(12, 180) = 180
1*180=180 2*180=360 3*180=540 4*180=720