part b: the inequality is representing the temperatures of city R and city S, comparing the difference in their temperatures.
part c: (marking city R at –2 on the number line and marking city S at –6 on the number line), using the number line to show the values of the city temperatures, city R is warmer because it is closer to 0 while city S is farther from zero and in the case that these are negative temperatures, the temperature closest to zero is the warmest.
Part B- this is an inequality because it is comparing the temperature difference. -2 is greater than -6 because it is a warmer temperature. The higher the negative number the colder it is, the lower the negative number is or the closer
Part C- City R is warmer because it is -2 degrees F and the other city is -6F. The closer you get to zero when working with negative numbers the bigger the number is. This is because number lines read from left to right, just like a book. -2 is warmer than -6 because it is closer to zero and it is closer to become a positive number than -6 is.