The width of a rectangle measures (7d+8f)(7d+8f) centimeters, and its length measures (2d-3f)(2d−3f) centimeters. Which expression represents the perimeter, in centimeters, of the rectangle? Ignore the option already selected.

Ben and cam are scuba diving. ben is 15.815.8 meters below the surface of the water. cam is 4.24.2 meters above ben. what is cam's position relative to the surface of the water? choose 1 choose 1 (choice a) a 11.611.6 meters above the surface of the water (choice b) b 11.611.6 meters below the surface of the water (choice c) c 2020 meters above the surface of the water (choice d) d 20 meters below the surface of the water