Which of the following equations does not represent a linear relationship between x and y A) y=4x

b) y=2x2 +5x

C) 5x = 3(y-2)

D) 6x-7y = 13
​

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

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