if x > 3000 , then the value of ( 1.2 x ) / ( 0.5 x - 406 ) is closest to ?
assume x = 3002 ( 1.2 x ) / ( 0.5 x - 406 ) = 3602.4 / ( 3002 * 0.5 - 406 ) = 3602.4 / 1095 = = 3 / 1 e
multiply(subtract(const_2, 0.5), const_2)