(0.15)(power 3) - (0.06)(power 3)/ (0.15)(power 2) + 0.009 + (0.06)(power 2) is: Choose the correct choice from the following options:
A) 0.09 B) 0.08 C) 0.1 D) 0.07 E) none of them

Rationale: "given expression = ( 0.15 ) ( power 3 ) - ( 0.06 ) ( power 3 ) / ( 0.15 ) ( power 2 ) + ( 0.15 x 0.06 ) + ( 0.06 ) ( power 2 ) = a ( power 3 ) - b ( power 3 ) / a ( power 2 ) + ab + b ( power 2 ) = ( a - b ) = ( 0.15 - 0.06 ) = 0.09 answer is a ."
Answer: A