(1/10)18 - (1/10)20 = ?  Pick
A) 99/1020  B) 99/10  C) 0.9  D) 0.8  E) None of the above
(1/10)(18-20) = -2/10 = -0.2   ANSWNone of the aboveR:None of the above
<result>E</result>
(1/10)18 - (1/10)20 = ?