A cable of length 80m is hanging between 2poles of height 50m the midpoint of the cable is 10m above the ground, calculate the distance between the two poles.

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?