PLEASE help me with this question! This is really urgent! No nonsense answers please, and answer with full solutions!

Which of the following expressions are equivalent ?

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

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