A, B and C lie on a straight line segment. A, E and D lie on a straight line segment. BE = 1.8m, CD = 9m and BC = 1.7m. Work out the length of AB. Write your answer to two decimal places.

Barrett is comparing the membership fees for two museums. the art museum charges a one-time fee of $8.25 plus $2.25 per month. the science museum charges a one-time fee of $10.75 plus $3.50 per month. how much does barrett save by joining the art museum instead of the science museum?