For f(x) =2x+1 and g(x)=x^2- 7, find (f- g(x). OA. -x^2+-6
OB. 2x^2-15
OC. -x^2x+ 8
OD. x^2- 2x-8

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