Give one example of when you would use a frequency chart

If angle 2=3x +1 and angle 3=2x +4what is angle 2

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

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)