Find the length of MK

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

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

2f(x)= x+3 if 4 < x < 8 2x if x 28 2