If n is an integer, n times •180degrees° represents an integer multiple of 180degrees° and (2nplus+1) times •90degrees° represents an odd integer multiple of 90degrees°, and so on. determine whether the expression is equal to 0, 1,minus−1, or is undefined.

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