Pls help with the whole pg pls

Part A:

Part B: The graph of the inequality is as follows:

There will be a shading covering all points with x-coordinates over 42 and below 176. The x-axis represents temperature, and the ends will be open circles, since the graph does not include the boiling temperatures themselves, since the material will not be liquid anymore at those temperatures.

Part C: She would not have, since benzene's freezing point is 42°F, and 20°F is below that. Unless the chemist could conduct her research with frozen benzene, otherwise she would not have been able to conduct her research on that day.

Step-by-step explanation:

Hope this helped!