katiediez75 katiediez75 Today at 3:28 PM Mathematics Answered I need help right now! Which expression is equivalent to 5(−2.3b − 4.1) − (7b + 0.7)? −18.5b − 21.2 18.5b − 21.2 −18.5b − 3.4 18.5b + 3.4