Our points are labeled on the number line. pls help pls

P, Q, R, S, negative 2, negative 1, zero, 1, 2

Which point represents the value of the absolute value of negative 1 over 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