A12-ft by -15-ft rectangular swimming pool has a 3-ft-wide no-slip surface around it. what is the outer perimeter of the no-slip surface?
78 ft
78ft 2
198 ft
198 ft 2

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212