Please help with question in the picture below THX.

Someone answer asap for ! 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

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)